An Iraqi Muslim cleric who preached at a mosque outside Paris has been detained for violating a house arrest order, French judicial sources say.
Yashar Ali was taken into custody on Monday in Argenteuil, north-west of the French capital.
Mr Ali was placed under house arrest in March pending deportation, but police say he never respected the ruling.
Last month, a court ruled that the Interior Ministry acted illegally by deporting another imam, Abdelkader Bouziane, to his native Algeria.
He had been quoted as justifying wife-beating.
Mr Guler has been placed under house arrest pending review of his expulsion order.