Fatal Crash on 10 Freeway in Ontario

Introduction to the Incident

Three people were killed and several others were injured Tuesday, Oct. 21, in an eight-vehicle crash involving multiple semi-trucks on the 10 Freeway in Ontario, authorities said.

The collision occurred around 1:10 p.m. on the westbound 10 Freeway west of the 15 Freeway, said California Highway Patrol Officer Rodrigo Jimenez. Four of the vehicles involved were commercial big rigs.

Cause of the Crash

A preliminary investigation found that one of the semi-trucks failed to stop as traffic slowed, triggering a chain-reaction crash, Jimenez said.

Casualties and Injuries

Three people were confirmed dead at the scene, and four others were taken to a hospital for treatment. Two of those individuals suffered major injuries, according to Jimenez.

Ongoing Investigation

Further details about the victims and the cause of the crash were not immediately available.

Conclusion

The fatal crash on the 10 Freeway in Ontario resulted in significant loss of life and injury, highlighting the importance of safe driving practices, especially for commercial vehicles. The incident is a sobering reminder of the potential dangers on our highways and the need for continued efforts to improve road safety.

FAQs

What happened in Ontario on October 21?

A fatal eight-vehicle crash involving multiple semi-trucks occurred on the 10 Freeway, resulting in three deaths and several injuries.

What caused the crash?

A preliminary investigation found that one of the semi-trucks failed to stop as traffic slowed, triggering a chain-reaction crash.

How many vehicles were involved?

Eight vehicles were involved in the crash, with four being commercial big rigs.

When did the crash occur?

The collision occurred around 1:10 p.m. on the westbound 10 Freeway west of the 15 Freeway.

Originally Published

Originally Published: October 21, 2025 at 4:21 PM PDT