SHEEPSHEAD BAY, Brooklyn (PIX11) — Police on Sunday asked the public for help identifying a man who was found unconscious in Brooklyn.

The man was found in front of 3664 Nostrand Ave. around 8:30 a.m. He was unresponsive and taken to a hospital in serious condition, according to police.

Police described the man as between 5’8″ to 5’10” and in his late 40s to early 50s, with a heavy build and short, salt-and-pepper hair. The man also has a tattoo of what police described as a bird on his left forearm. Police said the man is known to hang around Avenue W and Nostrand Avenue.

Submit tips to police by calling Crime Stoppers at 1-800-577-TIPS (8477), visiting, downloading the NYPD Crime Stoppers mobile app, or texting 274637 (CRIMES) then entering TIP577. Spanish-speaking callers are asked to dial 1-888-57-PISTA (74782).