Federal Government websites are back up after a cyber attack, supposedly carried out by the group called Anonymous.

It looks like Government of Canada sites are back up. #cdnpoli — Cormac Mac Sweeney (@cmaconthehill) June 17, 2015

Treasury Board President Tony Clement confirmed earlier Wednesday that the Government of Canada servers are under a cyber attack.

Confirmed today that Govt of Canada GC servers have been cyberattacked. Until full service is restored please use 1-800-OCanada. — Tony Clement (@TonyclementCPC) June 17, 2015

Several websites had gone down including Environment Canada, the Department of Foreign Affairs and Shared Services.

Clement could not say if any data had been stolen or whom may be responsible.

There is a YouTube posting, purportedly from the Anonymous online collective, that claims responsibility for the attack as a protest against Bill C-51.

Government workers in Ottawa were also tweeting that their email service was down as well.

Last week House of Commons employees were warned they had been hit with a cyber attack, although no data was apparently stolen.

It’s not clear if the RCMP or CSIS are involved in the investigation or how long it will last.