A cable car accident in San Francisco left seven people injured Wednesday morning.
The injured included five 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.
The car's conductor and gripman also suffered minor injuries.
The cable car was at the corner of Washington and Powell streets when it made an abrupt stop at about 10:15 a.m., according to reports. The cable car may have hit an obstruction on the tracks.
One person fell off of the cable car during the hard stop.
A bolt in the tracks appears to be the cause of a San Francisco Municipal Railway cable car accident this morning, a Muni spokesman told Bay City News. A bolt was reportedly found stuck in the trackway, which caused the inbound Powell-Hyde cable car to stop suddenly at Powell and Washington streets.
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.
Cable cars are the most popular with tourists, but it was not immediately known who was injured or how many people were on the car at the time.