Two people were hurt on Alcatraz Island Monday afternoon.
Chopper video above the seen showed a tram with a crumpled roof mid-way up a path to the old prison. The two people who were hurt were riding on that tram. The tram is used to help people with mobility issues make the 13 story trek from the water to the prison cell house.
A woman who said she was the sister and the aunt of the two who were hurt said the roof somehow struck an old pipe that was sticking out of the wall. She was also on the tram at the time and called it a freak accident.
A National Park spokesperson said the tram somehow swerved or slid into a wall as it made its way up the hill. Alexandra Picavet said the tram was brand new and was in its first full day of operation Monday.
Crews took the injured slowly down a down the hill on a golf cart type vehicle to an awaiting water rescue, which was the public ferry filled with other tourists.
It was raining and wet at the time and a crowd of tourists gathered to see the two people lifted on to the awaiting ferry.
Two ambulances were waiting on the main land of San Francisco and took the injured to a nearby hospital.
The injuries, to a young man and an adult woman, were not considered serious. The relative of the victims said her nephew suffered a gash to his head and that her sister suffered a gash to her eye.
The park spokeswoman said the injuries were not life threatening and that the used the stretchers out of an abundance of caution.