One person was found dead Thursday in a mobile home that caught fire in Middleburg, according to Clay County Fire Rescue. Neighbors called 911 around 2:40 a.m. about flames engulfing the mobile home at Knottingham Place. Over 20 firefighters from Clay County Fire Rescue arrived seven minutes later as the fire tore through the home. The State Fire Marshal's Office is responding and the cause of the fire is still under investigation. No firefighters were injured. The name of the person who died hasn't been released, but neighbors said two men live in the mobile home and haven't been there very long. A woman said she was awakened when neighbors started banging on the door, saying a home was burning.