Updated

Six workers have fallen off a roof at the bobsled center for the upcoming Winter Olympics in Sochi when the snow they were clearing slid to the ground.

Associated Press technicians who witnessed the fall Thursday said one of the men appeared to have injured a leg and was taken away on a stretcher, while others sustained minor injuries.

The men were clearing snow at the Sanki Sliding Center, which will host the bobsled and luge events at next month's games in the Russian Black Sea city.

The AP technicians said the workers appeared to have been harnessed to the building, but slid down with the snow. They estimated the roof was about 30 feet high.

No comment was immediately available from Sochi organizers.