Light rail cars collide in San Francisco

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Light rail cars collide in San Francisco, leaving many people injured, a police officer tells CNN.

'A lot' of injuries after light rail cars collide in San Francisco

SAN FRANCISCO, California (CNN) -- Two light rail transit cars collided Saturday in San Francisco, causing multiple injuries, but none appeared life-threatening, a spokesman for the the city's light rail transit system said.

"Apparently the conductor for one of the trains miscalculated a turn. It's still under investigation right now," a police officer told CNN. He would not provide his name.

The cars are part of Muni, the San Francisco Municipal Transportation Agency.

Initial reports are that a one-car train traveling at low speed collided with a stopped one-car train, Muni spokesman Judson True said in a written statement. He said the collision occurred on the outbound platform of West Portal Station.

As of 2:57 p.m. (5:57 p.m. ET), all Muni Metro light rail service that travels through West Portal Station in either direction has been halted, he said.

"There are reportedly multiple injuries as a result of the collision, but none of the injuries have yet been described as life-threatening," Judson said.

Buses are providing substitute service between West Portal and Castro stations and West Portal Station and western destinations for the K/T, L and M Muni Metro lines.

SF Muni is advising major service delays on the K, L and M light rail lines, and said there was no light rail service between the West Portal and Castro stations. Shuttle buses are in service. There was no estimated time for the resumption of normal Muni service.