NC*GETTY Rob Wainwright warned he has 'no doubt' ISIS is targeting Euro 2016

Rob Wainwright, director of EU law enforcement agency Europe, said the threat at the international football tournament is “high”. He even admitted it is impossible to completely guarantee the safety of supporters at the tournament – which will begin on June 10.

I have no doubt that the Euros are on a potential target list for ISIS Rob Wainwright

More than 500,000 British fans are expected to travel to France to follow their countries after England, Wales and Northern Ireland all qualified for the tournament. Mr Wainwright’s warning comes just a day after the US issued a grave travel alert, claiming attacks in Europe are possible this summer. He warned: “I have no doubt that the Euros are on a potential target list for [ISIS], for obvious reasons. The threat is high.

He said jihadi terrorists “would want to attack” Euro 2016 but insisted “it would be difficult for them to pull it off”. The security chief said the security measures being taken by the French authorities mean the risk “isn’t necessarily high”. He added: “We are dealing with a country a bit like Britain where they know how to do their security.

GETTY The Europol chief praised the French security forces

“They've learned a lot of lessons also from the attacks last November.” But the Welshman admitted it is “difficult to get the threat down to zero”.

Paris Terror Attack 2015: One year on Sun, November 13, 2016 Terrorists slaughtered 130 people during a series of coordinated terror attacks in Paris on Friday 13th November 2015. The attacks took place at the Bataclan concert hall, Boulevard Voltaire, Belle Equipe bar, rue Fontaine au Roi, Petit Cambodge restaurant, and Le Carillon bar. Play slideshow REUTERS 1 of 86 French President Francois Hollande and Paris Mayor Anne Hidalgo lay a wreath of flowers as they unveil a commemorative plaque next to the