Violent clashes erupted across several cities in Turkey between opposition supporters and state security forces for a second day, as demonstrators demand the release of Istanbul Mayor Ekrem Imamoglu,

The mayor, Ekrem Imamoglu, was detained after prosecutors accused him of corruption and terrorism. The opposition said the arrest was politically motivated.

Turkish authorities detained President Tayyip Erdogan's main political rival on Wednesday on charges including corruption and aiding a terrorist group, in what the main opposition party called "a coup attempt against our next president".