A cable car accident in San Francisco left ten people injured Wednesday morning.
The injured included eight passengers and two cable car workers.
One of the injuries was originally considered life-threatening, according to San Francisco fire officials. That passenger, an elderly man, is now listed in serious condition.
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The car's conductor and gripman also suffered minor injuries.
In the end, seven people were taken to the hospital and three were treated on the scene.
The cable car was at the corner of Washington and Powell streets when it made an abrupt stop because of a bolt stuck in the tracks at about 10:15 a.m.
One person fell off of the cable car during the hard stop.
NBC Bay Area's helicopter flew over the scene and showed the cable car upright and surrounded by maintenance workers. It was being towed to the maintenance yard at 11:30 a.m.
It was unclear just how the bolt got stuck in the tracks.