The body of a 78-year-old woman was discovered in her home in Chester after a fire.

According to the state Fire Marshal’s Office, the body of Shirley Day was discovered by her grandson, who also lives in the mobile home on Loop Road. The grandson had left on an errand and returned around 10 a.m. to find the home on fire.

Maine State Police investigators are assisting fire marshals at the scene with the investigation. Chester is located near Lincoln, in Penobscot County.