A sheriff in western Illinois believes high-speed driving is to blame for a single-vehicle crash that killed two teen girls.

According to Jeff Standard, the Fulton County Sheriff, neither drugs nor alcohol appear to have been a factor in a Saturday night car crash that killed two teenage girls. Authorities say the girls were driving fast on a country road when the driver lost control and crashed into a utility pole. Rachel Anderson of Avon, Illinois and Anissa Morgan of Racine, Wisconsin. 

Standard said the car was driven by another teen, 16 year-old Megan Markley of Avon. She was transported to a Peoria hospital for treatment after the crash. Another passenger, 14 year-old Levi Sloan was also hospitalized and is listed in fair condition.