Opposition calls for mass rally in Istanbul as Turkey escalates its crackdown on protests

A mass rally organised by the main opposition party in Turkey, the Republican People’s Party (CHP), kicked off in Istanbul on Saturday. While student groups have maintained the momentum with smaller protests ever since city mayor Ekrem Imamoglu was arrested on March 19, this is the first major demonstration to take place since Tuesday. France24 Correspondent Jasper Mortimer reporting from Ankara.