A worker who was stranded for hours on a radio tower in Washington, D.C. on Wednesday has been rescued, officials said.

The unidentified man was stranded since around 10 a.m., according to Fox affiliate WTTG. DC Fire and EMS tweeted their unit first received a call for help around 1:20 p.m.

Working roughly 120 feet high on the radio tower, the worker, strapped in a harness and safety equipment, became hypothermic and was "unable to lower himself" down, rescuers said.

Rescue teams later worked to bring the employee down with an aerial ladder. Officials said he'll be evaluated by emergency medical services.