Clashes between Turkish police and protesters have resumed in Istanbul's Taksim Square, despite a warning from PM Recep Tayyip Erdogan that he would not show "any more tolerance".
Police overnight used tear gas and water cannon to try to remove demonstrators from the square.
Istanbul's governor, Huseyin Avni Mutlu, earlier said operations would go on night and day to clear the square.
Protests began 13 days ago over the redevelopment of nearby Gezi Park.
