Minneapolis firefighters rescued an injured construction worker from a downtown construction site Monday.

Crews were called at 11:30 a.m. to the intersection of 6th Street and 4th Avenue S. for the technical rescue, which unfolded as people by the dozens watched from sidewalks and nearby skyways.

It was unclear how the worker was injured.

Firefighters used an aerial device to retrieve the worker from below ground level. He was raised up while on a stretcher. His eyes were open and he was flexing his hand while on his back.

From there, the worker was taken to HCMC. His condition was not immediately known.

A fire official on the scene said the entire operation took 40 to 45 minutes.

The site is the location of the new Minneapolis Public Service Center.