The leader of Turkey's main opposition Republican People's Party (CHP) has called for a large demonstration in Istanbul on Saturday in support of the city's jailed mayor, Ekrem Imamoglu. "Will you be at the large demonstration on Saturday to support Ekrem Imamoglu, to oppose the ban (...) and to say we want early elections?" said CHP leader Ozgur Ozel, taunting the crowd gathered for the seventh consecutive evening in front of Istanbul's city hall, ANSA reports.