Historic cinemas, cafes and shops went up in flames in central Athens on Sunday as black-masked protesters fought Greek police outside parliament, while inside lawmakers looked set to defy the public rage by endorsing a new EU/IMF austerity deal As parliament prepared to vote on a new 130 billion euro bailout to save Greece from a messy bankruptcy, a Reuters photographer saw the buildings engulfed in flames and huge plumes of smoke rose in the night sky. The air over Syntagma Square outside parliament was thick with tear gas as riot police fought running battles with youths who smashed marble balustrades and hurled stones and petrol bombs. Government officials warned that Greeks faced "unimaginably harsher" sacrifices if parliament rejected the package, which demands deep pay, pension and job cuts, when it votes later in the evening. But on the streets many businesses were ablaze, including the neo-classical home to the Attikon cinema dating from 1870 and a building housing the Asty, an underground cinema used by the Gestapo during World War Two as a torture chamber. As fighting raged for hours, protesters threw home made bombs made from gas canisters as riot police advanced across the square on the crowds, firing tear gas and stun grenades. Loud booms from the protests could be heard inside parliament. "Tear gas has reached the parliament chamber," said leftist lawmaker Panagiotis Lafazanis. After days of dire warnings and threats of rebellion, parliament began debating a bill setting out 3.3 billion euros ($4.4 billion) in wage, pension and job cuts this year alone, to secure funds Greece needs to avoid bankruptcy next month. Finance Minister Evangelos Venizelos told parliament that the alternative to the international bailout - bankruptcy and a departure from the euro zone - would be far worse for Greeks. "The choice is not between sacrifice and no sacrifices at all, but between sacrifices and unimaginably harsher ones," he told a stormy debate expected to run well into the night. One small party has already pulled out of the coalition of Prime Minister Lucas Papademos in protest against the terms of the rescue package from the European Union and International Monetary Fund - Greece's second since 2010. A number of lawmakers from the two biggest government parties, socialist PASOK and conservative New Democracy, have also threatened to rebel but their numbers did not appear to be enough to sink the bill. Greece needs the international funds before March 20 to meet debt repayments of 14.5 billion euros, or suffer a chaotic default which could shake the entire euro zone.