13 people injured in Santa Clarita after crash involving city bus, big rig

A crash involving a big rig truck, city bus and several other vehicles left 13 people injured in Santa Clarita on Wednesday morning.

The Los Angeles County Fire Department said one person is in critical condition and 12 others suffered unspecified injuries.

The crash took place near Golden Valley Road and Centre Point Parkway around 9:31 a.m.

Aerial footage of the crash showed several people receiving medical treatment for unknown injuries. Footage also showed a white vehicle pinned under a big rig with severe damage to the front. 

City officials are asking people to avoid the area. Traffic in both directions has been blocked off. Drivers should expect delays and use alternate routes until further notice. 

The cause of the crash remains unknown.  

This is a developing story. Check back for updates.