A 24-year-old man was stabbed early Sunday during a fight inside a popular Manayunk bar. Bouncers detained one suspect, but a second fled the scene, police said.

The incident unfolded inside Mad River at 4100 Main St. shortly before 1 a.m. The victim told investigators that a 23-year-old man approached and accused the victim of robbing him of $1,500.

The victim, who claimed he'd never seen the man before, pointed at his accuser and laughed, he told police.

The 23-year-old suggested the two go outside and pulled a knife from his pants pocket when the victim refused, police said.

The victim then punched the suspect, touching off a brawl. As the two fought, a third man struck the victim in his left side, police said.

When bouncers broke up the fight, the victim realized he'd been stabbed in his left side, police said. Bar staffers used towels to stanch the bleeding, called 911, and detained the 23-year-old until police arrived.

Responding officers recovered a knife from a witness who found it on the floor, but they were unable to locate the second suspect, accused of striking the victim as the fight was underway. That man, described as a thin white male in his 20s wearing a white shirt, remained at large Sunday afternoon.

The victim was listed in stable condition at Temple University Hospital.

Police did not disclose the identity of the man detained in connection with the fight, and there was no word on what charges he faced. Officials described the investigation as "open and active."

Anyone with information was asked to contact Philadelphia police.

Contact Alex Wigglesworth at 215-854-2305 or AWigglesworth@philly.com. Follow @phila_lex on Twitter.
Contact the Breaking News Desk at 215-854-2443 or BreakingNewsDesk@philly.com. Follow @phillydotcom on Twitter.