A woman was killed and a man was injured Friday in a head-on collision op RM 620 in Northwest Austin, police said.

According to police, a woman was driving a Toyota Celica north on RM 620 near Concordia University Drive about 2:45 p.m. when she crossed the center line for unknown reasons and hit a van.

She was taken to St. David’s Round Rock Medical Center, where she later died. No other people were in the car.

The van’s driver was taken to the same hospital; his injuries were not considered life-threatening.

Police have not released the identities of the people involved.