Lewiston Fire Department Lt. Kevin Roux hoses down a shed interior behind a house on Lasse Avenue in Lewiston on Monday afternoon. Capt. Wallace Veilleux said the fire was called in at 5:31 p.m. Monday. He said the blaze started in a grassy area behind the shed, but quickly spread to the structure. The fire is under investigation by the department's fire investigator, Paul Ouellette. He said the 3-year-old daughter of the couple who lives at the home discovered the blaze and immediately ran to her parents and told them to call 911.