Authorities in Ontario, California said a person was killed and two others hospitalized after a multi-car pileup crash early Thursday.
The violent collision involving six vehicles occurred around 9:30 a.m. at the intersection of Holt Boulevard and Mountain Avenue.
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The impact sent wheels off the road and caused the shutdown of the intersection for several hours.
Ontario authorities did not identify the victims or share details of the collision.
Investigators are reviewing surveillance footage of the crash but said that alcohol and drugs were likely not involved.