Thousands protest for second night over Istanbul mayor's arrest

Turkish riot police fired teargas and rubber bullets on Thursday, as demonstrators protested for a second night outside Istanbul City Hall over the shock arrest of the Mayor Ekrem Imamoglu in a graft and terror probe. The powerful and popular Imamoglu -- who is President Recep Tayyip Erdogan's main political rival -- was detained before dawn on Wednesday, just days before he was to be named as the candidate of his opposition CHP party for the 2028 presidential election.