Greek Prime Minister Alexis Tsipras was cheered wildly as he arrived Friday at a pro-'No' rally in Athens, two days before a crucial bailout referendum.

Tsipras was collected from the PM's office by a crowd of supporters who swept him along the street to the city's Syntagma square, where he was expected to address a 25,000 strong rally of people who want Greece to reject international creditors' demands for austerity.