Denver firefighters rescued a man who was stuck in a sink hole.

The incident happened at about 10:45 p.m. Wednesday on Gilpin Street between East Colfax and 16th avenues, said Mark Watson, a Denver Fire Department spokesman.

The man’s legs were stuck and firefighters had to use caution as they approached so as not to make the hole expand or drop further, Watson said.

The fire department’s trench rescue team responded and was able to pull the man out without further incident. Rescuers used plywood to distribute their weight as part of the process.

“They did have to pull him out of the sink hole,” Watson said.

He was checked at the scene by paramedics and released.

It wasn’t clear what caused or created the hole or how the man came to be in it.