An 18-year-old woman faces vehicular homicide charges after a DUI-related car accident left one female dead and another seriously injured on I-5 southbound in Federal Way on Thursday morning.

At approximately 2:30 a.m., a Chevy Cobalt with three female passengers was traveling southbound on I-5 outside of Federal Way when the driver apparently lost control of the vehicle and hit the left-side jersey barrier and came to rest perpendicular to traffic, according to Washington State Trooper Johnna Batiste.

Batiste said during the crash, the vehicle lights were severely damaged causing them to stop working, so oncoming traffic could not see the vehicle stalled in the roadway during the dark morning hours. This caused an approaching Toyota Tundra to hit the Chevy, Batiste said.

The driver of the Toyota was uninjured and the passenger was transported to the hospital for minor injuries.

The 18-year-old woman driving the Chevy provided a breath sample on scene, she said, which came back positive for alcohol impairment.

Batiste said charges of vehicular assault and homicide are being forwarded to the prosecutor’s office, as the initial crash was caused because the driver was under the influence.

King County medical examiners have not yet identified the female who died.

This story will be updated as more information becomes available.