ROHNERT PARK, Calif. —  A Rohnert Park teen is recovering at home after drinking what medical professionals say could have been a lethal amount of alcohol.

Rohnert Park police say the 15-year-old girl's blood-alcohol content was 0.578 — seven times the level for drunken driving — when she was hospitalized over the weekend.

A police spokesman says after being taken by ambulance to a hospital Friday night, doctors feared she would not live through the night.

Police say the girl had been at party at a home with a group of friends, with no adults present.

Investigators are still piecing together what happened that night and trying to determine if there was any criminal wrongdoing.

The name of the girl has not been released.