A pickup truck driver suffered major injuries Saturday in a crash on the I-10 in Pomona, the CHP reported.
The wreck was reported on the westbound side near North Dudley Street, according to the California Highway Patrol.
Authorities said the white Toyota pickup overturned but the motorist was not ejected.
The wreck blocked two far right lanes, prompted a SigAlert for about an hour.
That motorist was taken to a hospital by ambulance, CHP Officer Ed Jacobs told Patch.