SAN FRANCISCO -- San Francisco morning commuters were taken for an unexpectedly wild ride after their train operator appeared to fall asleep at the controls.

Passengers were seen in security video footage obtained by ABC News screaming, with some even jolted from their seats and others slamming into the train's wall, after the operator appeared to doze off.

"I'm sorry, relax, relax, relax -- it wouldn't stop. We didn't crash," the driver said to the visibly shaken passengers after the train car came to a halt, according to the footage.

The incident occurred on the morning of Sept. 24 when the two-car N-Judah train was headed inbound toward downtown San Francisco, according to the San Francisco Municipal Transportation Agency.

The agency said the train experienced a "series of unexpect

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