The large-scale LNU flash wildfire in Northern California has become the second largest mountain fire in the history of the state. More than 115000 local residents have been threatened by the wildfire and asked to evacuate. < p > < p > according to Shaun kavanov, commander of the California forestry and fire department, more than 125000 hectares of LNU flash wildfires have burned in five counties, including Napa, Sonoma, lake, yollo and Stanislaus, with only 15% of the fires under control. < / P > < p > at present, the LNU flash wildfire has destroyed hundreds of buildings and killed at least four people. Thousands of firefighters and hundreds of fire vehicles have been on the scene to fight the blaze, but the hot weather and complex terrain have made it difficult to fight the blaze, California governor Nelson said at a news conference on Friday. Newson also said it had sent support requests to neighboring states, including Arizona, Nevada and Texas.