Dozens on trial in Istanbul for attending banned protests, sparking nationwide demonstrations against government crackdown on dissent.

Dozens of people including journalists appeared before a court in Istanbul on Friday, accused of attending banned demonstrations and disobeying police orders to disperse during anti-government protests that were triggered by the jailing of the city’s opposition mayor, Ekrem Imamoglu. Imamoglu, seen as the main challenger to President Recep Tayyip…