A demonstrator affected by tear gas is evacuated during clashes with the Bolivarian National Guard, at El Hatillo municipality outside Caracas, Venezuela, Tuesday, May 2, 2017. People blocked streets in Caracas with broken concrete, twisted metal and flaming piles of trash to protest the president's bid to rewrite the constitution amid a rapidly escalating political crisis. (Photo by Fernando Llano/AP Photo)





A man helps a woman cross a barricade set up by residents blocking streets in El Hatillo's municipality near Caracas, Venezuela, Tuesday, May 2, 2017. Caracas residents blocked streets with trash bags, broken concrete and twisted metal Tuesday to protest the president's bid to rewrite the constitution amid a deepening political crisis. (Photo by Fernando Llano/AP Photo)





Masked demonstrators take cover during clashes with security forces at an opposition May Day march in Caracas, Venezuela, Monday, May 1, 2017. Venezuelans are taking to the streets in dueling anti- and pro-government May Day demonstrations as an intensifying protest movement enters its second month. (Photo by Ariana Cubillos/AP Photo)





A woman rests on a tire at a roadblock set up by residents outside her home in El Hatillo's municipality near Caracas, Venezuela, Tuesday, May 2, 2017. (Photo by Fernando Llano/AP Photo)





Opposition supporters show a shotgun that they snatched from riot police during a rally against President Nicolas Maduro in Caracas, Venezuela on May 3, 2017. (Photo by Carlos Garcia Rawlins/Reuters)





Riot police take position while clashing with opposition supporters rallying against President Nicolas Maduro in Caracas, Venezuela, May 3, 2017. (Photo by Carlos Garcia Rawlins/Reuters)





A demonstrator prepares to throw a molotov cocktail during clashes with riot police while rallying against Venezuela's President Nicolas Maduro in Caracas, Venezuela on May 2, 2017. (Photo by Carlos Garcia Rawlins/Reuters)





An opposition supporter throws a petrol bomb while clashing with riot police, during a rally against President Nicolas Maduro in Caracas, Venezuela on May 3, 2017. (Photo by Carlos Garcia Rawlins/Reuters)





Demonstrator affected by tear gas reacts while rallying against Venezuela's President Nicolas Maduro in Caracas, Venezuela on May 1, 2017. (Photo by Carlos Garcia Rawlins/Reuters)





Opposition supporters try to remove tear gas, while clashing with riot police, during a rally against President Nicolas Maduro in Caracas, Venezuela on May 3, 2017. (Photo by Carlos Garcia Rawlins/Reuters)





Opposition supporters stand in front of a fire during clashes with riot police at a rally against President Nicolas Maduro in Caracas, Venezuela May 3, 2017. (Photo by Carlos Garcia Rawlins/Reuters)





A demonstrator uses a makeshift shield for protection during a rally against Venezuela's President Nicolas Maduro in Caracas, Venezuela on May 2, 2017. (Photo by Carlos Garcia Rawlins/Reuters)





Riot police officers react to fire during a rally against Venezuela's President Nicolas Maduro in Caracas, Venezuela on May 1, 2017. (Photo by Christian Veron/Reuters)





Demonstrator fires a homemade mortar during rally against Venezuela's President Nicolas Maduro in Caracas, Venezuela on May 3, 2017. (Photo by Carlos Garcia Rawlins/Reuters)





Demonstrators clash with a riot police armored car during a rally against Venezuela's President Nicolas Maduro in Caracas, Venezuela on May 2, 2017. (Photo by Carlos Garcia Rawlins/Reuters)





Demonstrators use a giant slingshot during a rally against Venezuela's President Nicolas Maduro in Caracas, Venezuela on May 2, 2017. (Photo by Marco Bello/Reuters)





Volunteers, members of a primary care response team, kneel behind a tree during clashes with security forces at a rally against Venezuela's President Nicolas Maduro in Caracas, Venezuela on May 1, 2017. (Photo by Carlos Garcia Rawlins/Reuters)





Demonstrators throw stones during a rally against Venezuela's President Nicolas Maduro in Caracas, Venezuela on May 2, 2017. (Photo by Marco Bello/Reuters)





A demonstrator catches fire during clashes with riot police within a protest against Venezuelan President Nicolas Maduro, in Caracas on May 3, 2017. Venezuela' s angry opposition rallied Wednesday vowing huge street protests against President Nicolas Maduro' s plan to rewrite the constitution and accusing him of dodging elections to cling to power despite deadly unrest. (Photo by Ronaldo Schemidt/AFP Photo)





A demonstrator catches fire after the gas tank of a police motorbike exploded during clashes in a protest against Venezuelan President Nicolas Maduro, in Caracas on May 3, 2017. (Photo by Ronaldo Schemidt/AFP Photo)





A demonstrator catches fire after the gas tank of a police motorbike exploded during clashes in a protest against Venezuelan President Nicolas Maduro, in Caracas on May 3, 2017. (Photo by Juan Barreto/AFP Photo)





An opposition demonstrator ran over by a National Guard control vehicle is dragged away by a fellow demonstrator during a protest against Venezuelan President Nicolas Maduro, in Caracas on May 3, 2017. (Photo by Federico Parra/AFP Photo)





A man tries to help a fellow demonstrator who catched fire, after the gas tank of a police motorbike exploded, during clashes in a protest against Venezuelan President Nicolas Maduro, in Caracas on May 3, 2017. (Photo by Juan Barreto/AFP Photo)





A demonstrator catches fire, after the gas tank of a police motorbike exploded, during clashes in a protest against Venezuelan President Nicolas Maduro, in Caracas on May 3, 2017. (Photo by Juan Barreto/AFP Photo)





A charging National Guard riot control vehicle is hit by a Molotov cocktail thrown by a demonstrator during a protest against Venezuelan President Nicolas Maduro, in Caracas on May 3, 2017. (Photo by Federico Parra/AFP Photo)





Opposition activists are run over by a charging National Guard riot control vehicle during a protest against Venezuelan President Nicolas Maduro, in Caracas on May 3, 2017. (Photo by Carlos Becerra/AFP Photo)





A Venezuelan National Guard riot control vehicle runs over an opposition demonstrator during a protest against Venezuelan President Nicolas Maduro, in Caracas on May 3, 2017. (Photo by Federico Parra/AFP Photo)





Riot police fire tear gas while clashing with opposition supporters rallying against President Nicolas Maduro in Caracas, Venezuela May 3, 2017. (Photo by Carlos Garcia Rawlins/Reuters)