India, Aug. 4 -- Authorities are struggling to contain several large wildfires in the Spokane, Washington area that have forced roughly 65,000 people from their homes, destroyed hundreds of buildings, and sent plumes of toxic smoke into the air.

Three wildfires have consumed more than 12.5 square miles of land in and around Spokane, the second largest city in the state, according to the National Interagency Fire Center. The blazes were 0% contained as of August 3.

The fires have burned between 700 and 1,100 structures, including homes and businesses, according to the California Interagency Incident Management Team 7, which is leading the response effort.

Officials said the numbers were preliminary as crews were still working to contain...