Two female occupants were injured from a severe fire that destroyed their mobile home Sunday morning on Nine Mile Tree Road. Both women were being treated at the Upstate Medical in Syracuse this morning, officials said. State police said this afternoon that 57-year-old Kelly S. Fancher and 78-year-old Sally A. Stanton are both currently listed in serious condition. Troopers said the preliminary investigation suggests that the fire was accidental, caused by a small cooking appliance. Passersby and employees at the James A. Brennan Memorial Humane Society — across the road — reported an “explosion” sound from the structure at 434 Nine Mile Tree Road in the town of Mayfield that occurred at 9:19 a.m. Sunday. According to a news release issued by Fulton County Emergency Management Director / Fire Coordinator Steven Santa Maria, two occupants were injured. The fire is being investigated by state police. Stanton was seen being transported out of the area by a LifeNet helicopter after 10 a.m. Fancher was initially taken to Nathan Littauer Hospital. The owner of the mobile home was listed as Ernest J. Fancher of 452 Nine Mile Tree Road.