What to Know Cops are hunting a pair of men who they say sucker-punched a man in the Bronx and took his picture while he was unconscious in the street

Other people, cops claim, saw the man and picked his pockets, stealing his cellphone and ID

The 37-year-old victim was taken to an area hospital, where he is in critical condition; he is suffering from a fractured skull

A man was left in a Bronx street in the middle of the day after a brutal punch knocked him out, leaving him behind for people to pick his pockets and take pictures of him while he's unconscious, authorities say.

One of the suspects in the attack on the 37-year-old man has been arrested, police announced Thursday afternoon. Luis Rivera, 22, is charged with second-degree assault; the other suspect is still being sought.

Police say the two attackers walked up to the victim last Monday morning in the area of Aqueduct Avenue and Buchanan Place in University Heights. One of the suspects wound up and delivered a knockout blow on the victim, who then fell to the ground in the middle of the intersection.

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The attackers walked away, leaving the unconscious man alone, according to the NYPD. Video shows the pair walking away from the scene and high-fiving each other with grins on their faces.

Moments later, others walk up to the victim and go through his pockets, swiping his cellphone and ID, authorities said.

Cops claim the two attackers then returned and took photos of the victim as he lay unconscious on the ground.

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The victim was taken to an area hospital, where he remains in critical condition after more than a week. He has a fractured skull, and authorities say he still hasn't regained consciousness so can't talk to cops about his attackers.

It's not clear how Rivera was arrested; attorney information for him wasn't immediately available.

Witnesses are urged to call Crime Stoppers with tips on the other suspect.

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