Tens of thousands of Turks spilled into their streets Sunday after a call by a minor Islamist party to protest Israel's deadly asault on Gaza which has claimed more than 485 lives. Police refused to give a number for the demonstrators filling up the sprawling Caglayan square in central Istanbul under drizzling rain, but organisers claimed there were as many as 700,000 people in the 180,000-square-meter venue. Waving Turkish and Palestinian flags, the protesters chanted "Damn Israel" and "Allahu Akbar" or "God is great" as they burnt Israeli flags, a foreign news agency correspondent said. "Stop the massacre, Palestine is dying," read a banner brandished by the protesters, many of them wearing headbands with the inscription "We are all Palestinians."