Protesters raise a barrier that was blocking the road for an ambulance to pass at the Ibanez bridge during a protest at Aysen region, some 1682 km (1045 miles) south of Santiago March 1, 2012. Members of social organizations from Aysen are protesting to demand fuel subsidies and special regional minimum salaries, according to local media. REUTERS/Carlos Vera (CHILE - Tags: CIVIL UNREST POLITICS)