Four prominent members of the Chadian opposition have been arrested by security forces in N’Djamena. The whereabouts of Lol Mahamat Choua, Ngarlejy Yorongar, Ibni Oumar Mahamat Saleh, and Wadel Adbelkader Kamougué remain unknown since their arrest on Sunday. Amnesty International has received information suggesting they may be detained at the city's presidential palace. No legal justification has been given by the authorities for their arrest. A spokesperson at the Presidency told Amnesty International on Tuesday that "they can not confirm whether these four people have been arrested."