LOS ANGELES (AP) — Authorities say a collision between a car and a bus forced the bus onto railroad tracks where it was later hit by a freight train.

KCBS-TV reports Los Angeles Fire dispatcher Margaret Stewart says four people were injured in the initial crash, which happened early Monday morning.

Authorities say a woman driving the car was taken to a hospital in critical condition, but she is expected to recover.

Police say two men also were taken to the hospital with non-life-threatening injuries. A fourth patient declined to be transported. All three had been on the bus at the time of the collision.

Authorities say the two crashes happened from 5-10 minutes apart.

Metrolink says the investigation will not affect service.

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Information from: KCBS-TV, http://www.cbs2.com/