Firefighters dig trenches in a effort to stop the advancement of a forest fire in Hualañe, a community in Concepcion, Chile, Wednesday, Jan. 25, 2017. The worst forest fires in Chile’s history were uncontrolled on Wednesday, killing a firefighter and two policemen caught in the flames as they tried to help families in rural communities, authorities said. (Alejandro Zoñez/Aton via AP) NO PUBLICAR EN CHILE