WALNUT CREEK, Calif. (KTVU) - Contra Costa Fire crews responded to a hazmat incident on I-680 SB in the Walnut Creek area.
Three vehicles were involved in a crash Thursday morning. One of the vehicles was carrying a mixed load of chemicals and chlorine.
There was a strong odor of chlorine in the area.
Hazmat crews responded to the scene.
At this point, additional details have not been released.