A man who posted a Facebook message calling for all British Muslims to be killed in the wake of the Manchester attack has been jailed for a year.

Keegan Jakovlevs, of Wrexham in North Wales, previously pleaded guilty to publishing material with the intention of stirring up religious hatred.

The 22-year-old was sentenced at Mold Crown Court for the crime, which is made illegal by the Public Order Act 1986.

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Prosecutors said Jakovlevs posted his message shortly after the bombing at Manchester Arena on 22 May and that it was taken down shortly afterwards.

Isis supporter Salman Abedi killed 22 victims, including children, and injured 250 more when he detonated a homemade bomb as fans poured out of an Ariana Grande concert.

“Jakovlevs’s Facebook message expressed sympathy for the families of those caught up in the bombing but then, using racist and offensive language, he called for every Muslim in the country to be killed,” a spokesperson for the Crown Prosecution Service (CPS) said.

“The prosecution argued that Jakovlevs’s single message was particularly serious because it was posted so soon after the Manchester bombing when public emotions were running high.”

The CPS said the message was accessible to his 2,154 Facebook friends “at the very least” and to other members of the public.

“Overall, there was potential for it to have been seen by a very large number of people and for serious harm to have occurred in addition to the obvious fear and distress suffered by any member of the Muslim community who may have seen it,” prosecutors added.

Sue Hemming, head of the special crime and counter-terrorism division in the CPS, said no harmful action was traced to the post but Jakovlevs’s “intention was clear”.

She added: “After the Manchester attack there were countless messages of support on social media for those affected but Keegan Jakovlevs chose to stir up religious hatred by calling for British Muslims to be indiscriminately killed.

“People should not assume they can hide on social media when stirring up hatred and violence. Where there is evidence the CPS will prosecute them and they will face imprisonment as a result.”

Numerous defendants have been prosecuted for social media posts in recent months, for offences including inciting hatred and violence, and spreading Isis propaganda.

Shape Created with Sketch. Manchester explosion in pictures Show all 37 left Created with Sketch. right Created with Sketch. Shape Created with Sketch. Manchester explosion in pictures 1/37 People running down stairs as they attempt to exit the Manchester Arena after a blast, where U.S. singer Ariana Grande had been performing, in Manchester Twitter/@ZACH_BRUCE/ via REUTERS 2/37 Helpers attend to people inside the Manchester Arena after a suspected suicide bomber detonated an explosive device at the end of an Ariana Grande concert, killing 22 people PA wire 3/37 Armed officers guard outside a hotel near the Manchester Arena following reports of an explosion, in Manchester, Britain EPA 4/37 Police officers are seen outside the Manchester Arena, where U.S. singer Ariana Grande had been performing, in Manchester, northern England Reuters 5/37 Getty Images 6/37 Getty Images 7/37 Getty Images 8/37 AFP/Getty Images 9/37 Police and fans close to the Manchester Arena, after reports of an explosion Getty Images 10/37 There have been reports of explosions at Manchester Arena where Ariana Grande had performed Getty Images 11/37 Police deploy at scene of explosion in Manchester, England, at a concert in Manchester Arena AFP/Getty Images 12/37 Police stand by a cordoned off street close to the Manchester Arena Getty Images 13/37 Police deploy at scene of explosion in Manchester, England AFP/Getty Images 14/37 Police deploy at scene of a reported explosion during a concert in Manchester, England, on May 23, 2017. British police said early May 23 there were "a number of confirmed fatalities" after reports of at least one explosion during a pop concert by US singer Ariana Grande. Ambulances were seen rushing to the Manchester Arena venue and police added in a statement that people should avoid the area AFP/Getty Images 15/37 An ambulance drives away from the Manchester Arena, where U.S. singer Ariana Grande had been performing, in Manchester Reuters 16/37 Police escort members of the public from the Manchester Arena in Manchester, England. Getty Images 17/37 A woman sits in the street in a blanket near the Manchester Arena as police guard the area following reports of an explosion, in Manchester, Britain EPA 18/37 Two women wrapped in thermal blankets stand near the Manchester Arena, where US singer Ariana Grande had been performing, in Manchester Reuters 19/37 A Royal Logistic Corps (RLC) bomb disposal robot is unloaded outside the Manchester Arena following reports of an explosion, in Manchester. At least 19 people have been confirmed dead and others 50 were injured, authorities said. It is being treated as a terrorist incident until police know otherwise EPA 20/37 A Royal Logistic Corps (RLC) bomb disposal robot is unloaded outside the Manchester Arena following reports of an explosion, in Manchester EPA 21/37 Members of the public receive treatment from emergency service staff at Victoria Railway Station close to the Manchester Arena on May 23, 2017 in Manchester, England. There have been reports of explosions at Manchester Arena where Ariana Grande had performed this evening. Greater Manchester Police have have confirmed there are fatalities and warned people to stay away from the area Getty Images 22/37 Armed police after a suspected terrorist attack at the Manchester Arena at the end of a concert by US star Ariana Grande left 19 dead PA wire 23/37 Emergency services arrive close to the Manchester Arena in Manchester Getty Images 24/37 An amoured police vehicle patrols near Manchester Arena in Manchester Getty Images 25/37 A man carries a young girl on his shoulders near Victoria station in Manchester AFP/Getty Images 26/37 Police officers stand at the Miller Street and Corporation Street Crossroads, in front of the Manchester Arena in Manchester, England Getty Images 27/37 Police block a road near to the Manchester Arena in central Manchester, England AP 28/37 Armed police patrol near Victoria station in Manchester, northwest England. Twenty two people have been killed and dozens injured after a suspected suicide bomber targeted fans leaving a concert of US singer Ariana Grande in Manchester Getty Images 29/37 Police forensic officers leave the Manchester Arena as they investigate the scene of an explosion in Manchester Getty Images 30/37 A forensic officer collects evidence on a walkway between Victoria station and Manchester Arena following a deadly terror attack in Manchester, Getty Images 31/37 A woman and a young girl wearing a t-shirt of US singer Ariana Grande talks to police near Manchester Arena following a deadly terror attack in Manchester, Getty 32/37 EPA 33/37 Mayor of Greater Manchester Andy Burnham and Manchester City Council Leader Sir Richard Leese speak to the media outside Manchester Town Hall after a suicide bomber killed 22 people, including children, as an explosion tore through fans leaving a pop concert in Manchester Dave Higgens/PA Wire 34/37 The media gather behind a police cordon in Manchester Getty Images 35/37 Flowers left close to the Manchester Arena, the morning after a suicide bomber killed 22 people, including children, as an explosion tore through fans leaving a pop concert in Manchester Danny Lawson/PA Wire 36/37 Ariana Grande concert attendees Karen Moore and her daughter Molly Steed, aged 14, from Derby, leave the Park Inn where they were given refuge after last night's explosion at Manchester Arena Getty 37/37 Signs saying 'We love Manchester' are displayed in a window in Manchester, England Getty Images 1/37 People running down stairs as they attempt to exit the Manchester Arena after a blast, where U.S. singer Ariana Grande had been performing, in Manchester Twitter/@ZACH_BRUCE/ via REUTERS 2/37 Helpers attend to people inside the Manchester Arena after a suspected suicide bomber detonated an explosive device at the end of an Ariana Grande concert, killing 22 people PA wire 3/37 Armed officers guard outside a hotel near the Manchester Arena following reports of an explosion, in Manchester, Britain EPA 4/37 Police officers are seen outside the Manchester Arena, where U.S. singer Ariana Grande had been performing, in Manchester, northern England Reuters 5/37 Getty Images 6/37 Getty Images 7/37 Getty Images 8/37 AFP/Getty Images 9/37 Police and fans close to the Manchester Arena, after reports of an explosion Getty Images 10/37 There have been reports of explosions at Manchester Arena where Ariana Grande had performed Getty Images 11/37 Police deploy at scene of explosion in Manchester, England, at a concert in Manchester Arena AFP/Getty Images 12/37 Police stand by a cordoned off street close to the Manchester Arena Getty Images 13/37 Police deploy at scene of explosion in Manchester, England AFP/Getty Images 14/37 Police deploy at scene of a reported explosion during a concert in Manchester, England, on May 23, 2017. British police said early May 23 there were "a number of confirmed fatalities" after reports of at least one explosion during a pop concert by US singer Ariana Grande. Ambulances were seen rushing to the Manchester Arena venue and police added in a statement that people should avoid the area AFP/Getty Images 15/37 An ambulance drives away from the Manchester Arena, where U.S. singer Ariana Grande had been performing, in Manchester Reuters 16/37 Police escort members of the public from the Manchester Arena in Manchester, England. Getty Images 17/37 A woman sits in the street in a blanket near the Manchester Arena as police guard the area following reports of an explosion, in Manchester, Britain EPA 18/37 Two women wrapped in thermal blankets stand near the Manchester Arena, where US singer Ariana Grande had been performing, in Manchester Reuters 19/37 A Royal Logistic Corps (RLC) bomb disposal robot is unloaded outside the Manchester Arena following reports of an explosion, in Manchester. At least 19 people have been confirmed dead and others 50 were injured, authorities said. It is being treated as a terrorist incident until police know otherwise EPA 20/37 A Royal Logistic Corps (RLC) bomb disposal robot is unloaded outside the Manchester Arena following reports of an explosion, in Manchester EPA 21/37 Members of the public receive treatment from emergency service staff at Victoria Railway Station close to the Manchester Arena on May 23, 2017 in Manchester, England. There have been reports of explosions at Manchester Arena where Ariana Grande had performed this evening. Greater Manchester Police have have confirmed there are fatalities and warned people to stay away from the area Getty Images 22/37 Armed police after a suspected terrorist attack at the Manchester Arena at the end of a concert by US star Ariana Grande left 19 dead PA wire 23/37 Emergency services arrive close to the Manchester Arena in Manchester Getty Images 24/37 An amoured police vehicle patrols near Manchester Arena in Manchester Getty Images 25/37 A man carries a young girl on his shoulders near Victoria station in Manchester AFP/Getty Images 26/37 Police officers stand at the Miller Street and Corporation Street Crossroads, in front of the Manchester Arena in Manchester, England Getty Images 27/37 Police block a road near to the Manchester Arena in central Manchester, England AP 28/37 Armed police patrol near Victoria station in Manchester, northwest England. Twenty two people have been killed and dozens injured after a suspected suicide bomber targeted fans leaving a concert of US singer Ariana Grande in Manchester Getty Images 29/37 Police forensic officers leave the Manchester Arena as they investigate the scene of an explosion in Manchester Getty Images 30/37 A forensic officer collects evidence on a walkway between Victoria station and Manchester Arena following a deadly terror attack in Manchester, Getty Images 31/37 A woman and a young girl wearing a t-shirt of US singer Ariana Grande talks to police near Manchester Arena following a deadly terror attack in Manchester, Getty 32/37 EPA 33/37 Mayor of Greater Manchester Andy Burnham and Manchester City Council Leader Sir Richard Leese speak to the media outside Manchester Town Hall after a suicide bomber killed 22 people, including children, as an explosion tore through fans leaving a pop concert in Manchester Dave Higgens/PA Wire 34/37 The media gather behind a police cordon in Manchester Getty Images 35/37 Flowers left close to the Manchester Arena, the morning after a suicide bomber killed 22 people, including children, as an explosion tore through fans leaving a pop concert in Manchester Danny Lawson/PA Wire 36/37 Ariana Grande concert attendees Karen Moore and her daughter Molly Steed, aged 14, from Derby, leave the Park Inn where they were given refuge after last night's explosion at Manchester Arena Getty 37/37 Signs saying 'We love Manchester' are displayed in a window in Manchester, England Getty Images

In a separate case in London, a 45-year-old man is due to be sentenced for disseminating terrorist material in Facebook posts today.

Mehdi Bira, a father and former school caretaker, had downloaded 48 terrorist-related videos on his phone and computer, police said.

The Government has launched enhanced efforts to tackle extremist material online amid increasing warnings over the threat posed by the far-right.

Just under a third of all people being monitored under the Channel counter-extremism programme in 2016/17 believe in extreme right-wing ideologies and are vulnerable to radicalisation, according to Home Office figures.

Police and community groups have documented surges in Islamophobic hate crime in the wake of the Isis-linked attacks in Westminster, Manchester and London Bridge.

Greater Manchester Police’s data showed a 500 per cent increase in reported anti-Muslim hate crimes after Abedi’s bombing, with 224 reports in the following month compared with 37 during the same period in 2016.

The National Police Chiefs' Council (NPCC) said police recorded 234 hate crime incidents 48 hours after the Westminster attack, 273 following the Manchester bombing and 319 two days after the London Bridge attack.

On average, there were 171 hate crimes per day in 2016.

There was no such increase following June's far-right terror attack in Finsbury Park, when a van was driven into Muslim worshippers, leaving one man dead.

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