Overview
- The collision occurred around 1:10 p.m. on the westbound 10 Freeway just west of the 15 in Ontario, according to the California Highway Patrol.
- Eight vehicles were involved, including four commercial big rigs, CHP Officer Rodrigo Jimenez said.
- Three people were pronounced dead at the scene, authorities reported.
- Four others were transported to hospitals, with two suffering major injuries, according to CHP.
- A SigAlert closed most westbound lanes and the I-10/I-15 connector, causing heavy delays as crews responded.