2021-07-17 22:36:17 GMT2021-07-18 06:36:17(Beijing Time) Xinhua English SAN FRANCISCO, July 17 (Xinhua) -- The Red Apple Fire burned 11,000 acres (44.5 Square km) near Wenatchee, U.S. state of Washington, and was about 50 percent contained as of Saturday morning, officials said. The Chelan County Sheriff has downgraded most of the approximately 1,500 evacuation orders. Some homes and structures remain at risk, according to a report by The Seattle Times. About 300 people are fighting the fire, and a national incident management team arrived Friday to assist. Investigators from the Chelan County Sheriff's Office said the fire was human-caused. Earlier this week they had identified the house where they believed the fire began. Enditem