Firefighters have rescued two workers who were trapped in the basket of a lift that malfunctioned and swung atop the Devon Tower Wednesday in downtown Oklahoma City.

both workers were apparently injured. Firefighters got the basket to the roof of the building about 8:30 a.m. One of the workers has a possible head injury, according to reports.

At 8:45 a.m., police were requested to evacuate the Myriad Gardens due to the incident, firefighters reported.

The lift was swinging and struck parts of the building, breaking glass. Two men stood upright, holding on to the sides of the lift as it moved back and forth.

An EMSA medical crew was requested to the top of the Devon roof where firefighters are working to lower the workers from the basket.

A caller reported the basket swinging out of control with workers in it about 7:50 a.m.

Firefighters said the “man-lift” was on top of the building with two window-washing workers in it. The equipment malfunctioned, firefighters reported.

A tweet from fire Battalion Chief Benny Fulkerson states: “Dangerous situation at Devon Tower. A large basket, believed to have window washers inside, is swinging wildly out of control at the top of the tower. This is a very dangerous situation. Please avoid the area. Firefighters are working to access this now. BF 8:02 am.”