Angry mobs in Sri Lanka have burned down several homes belonging to the ruling Rajapaksas and MP's, following clashes with government supporters. The violence capped a day of unrest that saw PM Mahinda Rajapaksa quit amid mass protests at his government's handling of the economic crisis. But it failed to assuage demonstrators, who attempted to storm his official residence while he was holed up inside. Five people have died and more than 190 have been injured since Monday. An island-wide curfew has been extended to Wednesday morning as authorities seek to quell the violence. Many are still calling for President...