A manhunt is underway after a 32-year-old man was fatally shot in the head in front of a Times Square bar early Tuesday, authorities said.

The murder happened about 3:50 a.m. in front of Tonic on Seventh Avenue near West 48th Street.

The victim had just left the bar when he got into a fight with another man, police said.

The suspect then pulled out a gun and shot the victim in the head.

The victim was rushed to Bellevue Hospital, where he died.

The gunman is still on the loose. Police said the two men appear to know each other.

Police initially believed the victim to be a 27-year-old man because he was carrying someone else’s ID, officials said.

The popular drinking spot at the Crossroads of the World promotes itself online as “The World’s Neighborhood Sports Bar.”