Denver ? Firefighters rescued two window washers who were clinging desperately to their scaffold as strong winds slammed the platform repeatedly into the side of a downtown high-rise.

The two men, whose names weren’t released, were rescued Wednesday after firefighters went up to the 12th floor of the 22-story office building and grabbed the scaffold when it blew toward them.

“If we weren’t there at that time and that platform didn’t hit that exact window, it could have been a lot worse for us and for them,” firefighter Lt. Scott Lang said Thursday on ABC’s “Good Morning America.”

Rescuers then used the window washers’ safety ropes to tie the scaffold to the building.

People on the ground scrambled to dodge flying shards of glass. No one was hurt.

The National Weather Service estimated the wind blew from 15 mph to 25 mph possibly with gusts of up to 30 mph about 10 a.m., when the scaffold started swinging.