RIVERSIDE (CBS) — The 91 Freeway was closed near downtown Riverside Wednesday morning after a big rig crashed and overturned.

The accident, which was reported at 9:13 a.m., happened on the 91 Freeway at the state Route 60 and 215 Freeway interchanges, according to the California Highway Patrol.

The fully loaded tractor trailer was on its side blocking all eastbound lanes, the CHP reported.

It was not known if the driver was injured.

Traffic was being diverted to the southbound 215 Freeway, the CHP reported.

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