A man wears a banner featuring a photo of Istanbul Mayor Ekrem Imamoglu as he and others protest outside the Vatan Security Department, where Imamoglu is expected to be taken following his arrest in Istanbul, Turkey.
People gather outside the City Hall to protest the arrest of Istanbul Mayor Ekrem Imamoglu in Istanbul, Turkey.
University students hold a Turkish flag with the image of Turkey's founding father Mustafa Kemal Ataturk, in Istanbul, Turkey as they protest the arrest of Istanbul's Mayor Ekrem Imamoglu.
A police officer kicks a flare thrown by protesters during clashes in a rally against the arrest of Istanbul's Mayor Ekrem Imamoglu, in Istanbul, Turkey.
Police officers use pepper spray during clashes with people as they protest against the arrest of Istanbul's Mayor Ekrem Imamoglu, in Istanbul, Turkey.
A protester throws a firework during a protest against the arrest of Istanbul's Mayor Ekrem Imamoglu, in Istanbul, Turkey.
Fireworks thrown by protesters explode over riot police during a protest against the arrest of Istanbul's Mayor Ekrem Imamoglu, in Istanbul, Turkey.
Riot police use pepper spray to clear a protester during a protest against the arrest of Istanbul's Mayor Ekrem Imamoglu, in Istanbul, Turkey.
Protesters shout slogans during clashes with anti riot police during a protest against the arrest of Istanbul's Mayor Ekrem Imamoglu in Istanbul, Turkey.
A protester sits on her knees as riot police stand guard during a protest against the arrest of Istanbul's Mayor Ekrem Imamoglu, in Istanbul, Turkey.
A protester holds a flare next to riot police officers during a protest against the arrest of Istanbul Mayor Ekrem Imamoglu, in Istanbul, Turkey.
