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Deputy Veronica Fantom called the incident an “officer-involved shooting.”

About 7 a.m., a gray SUV traveling east on Avenue M in Lancaster swerved into oncoming lanes of traffic and collided head-on with a school bus east of 20th Street West, according to Deputy Veronica Fantom, a spokesperson for the Los Angeles County Sheriff’s Department.

The driver of the SUV was pronounced dead at the scene, Fantom said.

After hitting the bus, the vehicle then veered onto a nearby sidewalk — colliding with an elderly female bicyclist, Fantom said.

It is currently unknown if alcohol, drugs or speed played a role in the crash, Fantom said.