Demonstrators build a barricade during a rally in support of the Aysen region social movement, in Valparaiso city
Demonstrators roll a garbage container to build a barricade during a rally in support of the Aysen region social movement, in Valparaiso city, about 121 km northwest of Santiago March 21, 2012.
Demonstrators are hit by a jet of water released from a riot police vehicle during a rally in support of the Aysen region social movement, in Santiago March 21, 2012.