Renewed clashes have broken out between protesters and Venezuelan national guard members at the border with Brazil.
Dozens of Venezuelans who had come to the Brazilian border city of Pacaraima began throwing rocks across the closed border at Venezuelan troops, who responded with tear gas and buckshot.
Globo television broadcast images of a Brazilian soldier advancing to the border line on Sunday to appeal for calm on the part of the Venezuelan soldiers and to urge protesters and journalists to move back.
Local officials say dozens of people were injured in more violent clashes on Saturday as Venezuelan forces blocked aid shipments from crossing the border.
Brazilian Navy Col. George Feres Kanaan is co-ordinating humanitarian logistics in Roraima state, and he says two Venezuelan National Guard sergeants sought refuge in Brazil on Saturday, abandoning President Nicolas Maduro’s forces.