A 34-year-old construction worker’s left arm was amputated near his shoulder after a mishap inside an elevator shaft Saturday afternoon in River North.
It happened about 4:20 p.m. at a building under construction in the 700 block of North Hudson, according to police and fire officials.
The man was taken to Northwestern Memorial Hospital in critical condition and was undergoing surgery Saturday night.
Police said it was an accident. Area Central detectives were investigating.