Turkish police have used tear gas to disperse demonstrators in Istanbul and Ankara on the first anniversary of deadly anti-government protests. Some 25000 police have been deployed at Istanbul's.\n\nTurkish police have used tear gas to disperse demonstrators in Istanbul and Ankara on the first anniversary of deadly anti-government protests. Some 25000 police have been deployed at Istanbul's.\n\nPLEASE SUBSCRIBE.\n\nRAW FOOTAGE: Turkish police CRUSH Taksim protesters with tear gas