A Muslim radio station broadcast lectures by an Al Qaeda terror leader calling for holy war.
Iman FM transmitted 25 hours of sermons from Anwar Al-Awlaki, a hate preacher killed by a US drone strike in 2011.
A complaint was made to Ofcom, which has suspended the Sheffield-based station's licence.
The watchdog said the material 'amounted to a direct call to action to members of the Muslim community to prepare for and carry out violent action against non-Muslim people'.
Iman FM claimed to be unaware of the preacher's background and said not all the material was checked before being aired.
The Ofcom ruling described this defence as 'not credible'.
Anwar Al-Awlaki was a popular Islamic religious figure. He was also a top Jihadist. His materials are widely circulated. And his death and its manner is very well known in the Muslim world. Everyone in the Muslim world knows who he is.
And yet it says something that they broadcast Anwar Al-Awlaki in the UK while expecting that no one would stop them. And a lot of the time no one does. This time they got unlucky.