Rescuers search a site engulfed by the wildfire in Paradise of Butte County, California, the United States, on Monday. The death toll from the massive wildfire in Northern California has climbed to 79, while about 700 people are unaccounted for, according to authorities. Heavy rain this week could help quench the deadliest and most destructive wildfire in the state’s history, but could cause flash flooding and mudflows, authorities have warned.Xinhua