Big rig crash shuts lanes on 57 North in Diamond Bar

DIAMOND BAR, Calif. (KABC) -- A crash involving an overturned big rig shut down multiple lanes on the northbound 57 Freeway in Diamond Bar Wednesday morning.

The crash happened around 5:43 a.m. near the 60 Freeway interchange. There were no immediate reports of injuries.

The 57 North was jammed at Diamond Bar Boulevard, and the southbound side was slow from Temple Avenue.

The cause of the crash remains under investigation.