Two window washers rescued from scaffold dangling at World Trade Center
Stranded window washers hang on the side of One World Trade Center November 12, 2014. New York City fire fighters were trying to rescue at least one window washer on Wednesday thought to be trapped on broken scaffolding that was dangling outside the 69th floor of One World Trade Center, local officials said. REUTERS/Brendan McDermid

Two window washers caught on dangling scaffolding on the 69th floor of New York City's 1 World Trade Center were pulled to safety on Wednesday through a window cut in the tallest U.S. skyscraper, a building official said.

Mechanical error appeared to trap the workers, both veteran window washers, on a small platform dangling vertically from cables, according to Gerard McEneany, director of the window washing division at the building in lower Manhattan told NY 1 television.

(Reporting by Barbara Goldberg; Editing by Frank McGurty and Sandra Maler)