ALHAMBRA — A crash involving a bus and three other cars brought the westbound 10 Freeway to a screeching halt Friday afternoon.

The crash was reported about 11:45 a.m. on the freeway just west of Atlantic Avenue, according to California Highway Patrol logs.

Initial reports from the scene indicated passengers on a Foothill Transit bus were injured, as well as occupants of three other vehicles involved in the crash.

All westbound lanes of the 10 Freeway were shut down for about 40 minutes as crews cleared the disabled vehicles from the roadway, CHP logs show.

The two right-hand lanes of the freeway were re-opened at 12:20 p.m., and all westbound lanes were back in operation by 1:45 p.m.