A passenger was killed Thursday morning in a one-vehicle accident that left the driver in critical condition, the Gonzales Police Department said.

The identities of the victims were being withheld Thursday afternoon pending notification of the families.

The crash happened about 11 a.m. on La. 30 near South Philippe Street in Gonzales when the car veered off the eastbound lane of the highway and into a ditch, police said in a news release.

The passenger, a woman, was pronounced dead at the scene by the Ascension Parish coroner. The driver was transported to St. Elizabeth Hospital in Gonzales, where he is in critical condition, police said late Thursday afternoon.