A big rig crash on the westbound 10 Freeway has closed the road Monday in Montclair.
The semitrailer truck is on its side near the Central Avenue exit.
The eastbound side of the road was reopened at about 11:30 a.m., but the freeway remamined closed to westbound traffic.
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Information regarding the condition of the driver was not immediately available. At least one other vehicle was involved in the crash.
Montclair is about 30 miles east of downtown Los Angeles.