A pair of window cleaners were working their way up the 50-story Devon Tower building in Oklahoma when their metal basket began to swing wildly. Emergency responders rescued the two cleaners who are now being checked for injuries.

High winds and reports of an unstable crane are thought to be the cause of the basket swinging out of control.

Once the cleaners were rescued, the metal basket continued to swing wildly, smashing into several windows of the Devon Tower before emergency crews were able to stabilize the crane and lower the basket down.