Abu Qatada was arrested outside his home by UK Border Agency officials, according to The Sun, which has published photos of him being led away with his hands hidden under a jacket.
The newspaper has claimed he was handcuffed.
Qatada, who has been convicted of terror charges in Jordon, is due to appear at the Court of Appeal on Monday for Home Secretary Theresa May's bid to overturn a judge's decision to allow him to stay in the UK.
More top news
Teenage schoolchildren who use e-cigarettes dramatically increase their chances of graduating to tobacco, research has shown.
A year after the launch of a landmark plan to tackle the crisis, leading figures say a "much more robust" strategy is needed.
A van ploughing into pedestrians in a busy area of Barcelona echoes the circumstances of atrocities that have hit several countries.