Ahmed Mansour, a senior Al Jazeera Arabic TV journalist, was detained at a Berlin airport at the request of the Egyptian authorities.
Mansour was arrested at Berlin’s Tegel airport at 1320 GMT on Saturday as he tried to board a Qatar Airways flight from Berlin to Doha.
In a phone call, Mansour told Al Jazeera that he would remain in custody until Monday when he will face a German judge who will decide on his case.
Mansour was sentenced in absentia to 15 years in prison by Cairo’s criminal court in 2014 on the charge of torturing a lawyer in Tahrir Square in 2011.
Mansour rejected the charges as absurd, while Al Jazeera dismissed the accusation as a flimsy attempt at character assassination against of one of its leading journalists.