> an al jazeera journalist has been detained in berlin at the request of egyptian authorities, akmed mansour has been accused of several crimes. al jazeera says mansour is one of our leading journalist. and must be released immediately. victoria gatenby reports. >> reporter: mansour was detained at berlin airport, waiting to board a flight to doha. he'll stay in custody. until he appears before a judge on monday. german police say he's accused of several crimes. mansour says the arrest may have been part of a secret deal made during abdul fatah al-sisi's visit to germany. >> unfortunately the german authorities are handling this case in a suspicious matter, and that raises a lot of questions on their involvement and how they are cooperating with egypt. i'm sad to hear that there may have been a secret deal related to me, based on abdul fatah al-sisi's latest visit to germany. mansour's lawyer says his client's arrest is politically motivated. >> it's inconceivable to have an innocent man, all he was doing his job, in his two leading programs on al jazeera. >> reporter: abdul fatah al-sisi op