At least one person dead in vehicle collision on Vasco Road in Brentwood area

BRENTWOOD — At least one person was killed in an apparent head-on vehicle collision Monday morning on Vasco Road, authorities said.
The collision happened about 6:38 a.m. Monday on Vasco Road south of Walnut Boulevard, the California Highway Patrol said.
Initial reports were that two vehicles collided head-on and that one of them may have struck a third vehicle.
At least one person was pronounced dead at the scene, the CHP said.
It was not immediately known how many other people, if any, were injured.
The collision shut down all lanes of Vasco Road and a SigAlert was issued at 6:52 a.m. Vasco Road was expected to be closed for several hours while the CHP investigated.
This is a developing story. Check back for updates.