In central Paris, where a demonstration had been mainly peaceful, police used tear gas after protesters threw projectiles and set bins ablaze. Unions fear that protests could turn more violent if there continues to be no political response from the government. Police also fired tear gas at protesters in several other cities, including the western cities of Nantes and Bordeaux. Voters were further angered by the government's decision last week to push the pension changes through parliament. The past seven nights have seen demonstrations in Paris and other cities with rubbish bins set ablaze and clashes with police.