A house caught fire Wednesday afternoon in Lemon Grove, sending a column of dark smoke into the air above East County, officials and witnesses said. The blaze was reported about 3:50 p.m. at a single-story home on Dupont Drive near Dayton Drive, Heartland Fire & Rescue spokesman Sonny Saghera said. The home is about a block from Monterey Heights Elementary School and several baseball fields used by Lemon Grove Little League. Fire crews arrived at the home to find heavy smoke and flames, Saghera said. A San Diego sheriff’s watch commander said deputies closed off Dupont Drive and evacuated surrounding houses. He said there were no initial reports of injuries. This is a breaking news story that will be updated as more information becomes available.