The leader of Turkey's main opposition on Friday renewed a call on supporters to take to the streets for peaceful demonstrations against the arrest of Istanbul's mayor and top rival to President Recep Tayyip Erdogan, even as authorities widened a ban on protests and criticised the call as irresponsible. (Pics/AFP)

Turkish police on Wednesday arrested Istanbul's mayor, a popular opposition leader and key rival of President Recep Tayyip Erdogan, and several other prominent figures as part of investigations into alleged corruption and terror links. (Pics/AFP)