Personnel of the United Nations (UN) in Mexico investigate in Ixtapilla town, in Aquila, Michoacan state, Mexico, July 28, 2015. According to local press, personnel of the UN is performing investigations in Aquila municipality, after a minor died and three other persons injured by gunfire during a demonstration in which the residents demanded the liberation of Semei Verdia Zepeda, leader of the self-defense group of the "Costa-Sierra Nahua" of Michoacan. (Xinhua/Armando Solis)
