A dead horse lays on the side of a road while firefighters continue to battle the Valley fire in Middletown, California on September 13, 2015. The governor of California declared a state of emergency Sunday as raging wildfires spread in the northern part of the drought-ridden US state, forcing thousands to flee the flames. The town of Middletown, population 1,300, was particularly devastated by the Valley Fire, according to local daily Santa Rosa Press-Democrat, which said the fire grew from 50 acres to 10,000 over just five hours Saturday -- before quadrupling in size overnight. AFP PHOTO/JOSH EDELSON        (Photo credit should read Josh Edelson/AFP/Getty Images)