Authorities have released the names of the three people killed early Tuesday in a head-on vehicle crash in the Lompoc Valley.

The victims were Adelina Cortez Olea, 48, Zeferino Chavez Martinez, 47, and Rosalva Chavez Cortez, 18, all of Santa Maria, Santa Barbara County Sheriff’s Office spokeswoman Raquel Zick told Noozhawk on Wednesday.

Just before 6 a.m. Tuesday, Santa Barbara County firefighters, California Highway Patrol officers and other emergency personnel were dispatched to the collision on northbound Highway 1, south of Constellation Road, said fire Capt. Scott Safechuck. 

A Kia sedan and a Chevy pickup collided, killing the three people in the car, Safechuck said.

The Kia was headed south when the driver allowed the vehicle to drift to the left, into the opposing lanes, and into the path of the northbound pickup, according to CHP Officer Michael Griffith.

The CHP has not said who was driving the Kia.

Two people in the truck — driver Isidro Galvez, 52, and passenger Erid Ortega, 19, both of Lompoc — received minor injuries, and were taken to Marian Regional Medical Center by ground ambulance, he added.

Details on their conditions were not available.

Northbound Highway 1 in the area was closed for more than two hours due to the crash and investigation.

Drugs or alcohol do not appear to factors in the collision, Griffith said.

Anyone with information about the collision, which remains under investigation, is asked to contact the CHP at 805.688.5551.