A man is dead after falling from a building in Manhattan.

Police believe the man was a window washer and that he fell from the fifth floor. 

It happened at a building on Greenwich Street in TriBeCa around 1 p.m. Tuesday.

"I saw a blur of a body come down," said Ori Cipollaro, a witness. "I couldn't believe what I was seeing. I really thought maybe somebody had slipped on the ice and just went up in the air, and then I looked up and I saw the window open, I ran over and I saw the squeegee on the floor, and I realized what happened to the guy."

The man's name has not yet been released. 

The investigation is ongoing.