Footage shared on Wednesday shows a basket with window cleaners inside it, swinging from side to side at the top of Devon Tower in Oklahoma.

As the basket swung violently, specialists made their way to the top of the tower in an attempt to rescue those in the basket.

The basket was out of reach of the fire department’s tallest ladders, so firefighters were forced to break windows on an upper floor, and after they stopped the basket from swinging, they pulled the workers inside to complete the rescue.

-Noah Harte