Teen motorcyclist killed after crashing into railroad crossing gate

A motorcyclist was killed and his passenger suffered critical injuries when his bike crashed into a railroad crossing gate Monday morning in South Los Angeles, authorities said.

The crash occurred about 12:40 a.m. near East Imperial Highway and San Pedro Street, the Los Angeles Police Department reported.

Isaac Ambriz. 18, of Riverside, died at the scene, the Los Angeles County coroner's office reported.

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According to authorities, Ambriz was westbound on Imperial Highway when his motorcycle crashed into a railroad crossing gate. His passenger, a woman about 19 years old, was taken to a hospital with critical injuries.