Hundreds of thousands of pro-democracy demonstrators have returned to the streets of Istanbul, Turkey, in support of the city's jailed mayor. Ekrem Imamoglu, who is seen as the main rival of President Recep Tayyip Erdogan, was arrested on corruption charges last week, sparking mass protests.

İmamoğlu was arrested last week on corruption charges and booted out of his office as Istanbul mayor. Widely viewed as the main challenger to President Recep Tayyip Erdoğan, İmamoğlu was on Monday officially nominated as a presidential candidate.

Hundreds of thousands of people in Istanbul joined one of the biggest demonstrations in recent Turkish history on Saturday to protest against the government and the controversial imprisonment of deposed mayor Ekrem İmamoğlu.