New Orleans Police: 4 Wounded in Bourbon Street Shooting

New Orleans police are searching for three men who fled the scene of a quadruple shooting on the city's famed Bourbon Street, which was packed with revelers in the final weekend leading up to the Mardi Gras festivities.

Gunfire rang out Saturday night on the street, sending locals and tourists, many of whom are in town for Mardi Gras, running for cover.

Susan Talbot, manager of Rita's Tequila House, which is located on the block where the shooting happened, said her staff heard the gunshots and locked their doors.

"People just started running because the streets are jam packed," she said. "So you can't really see if you're standing at street level, but where the gunshots were from, people just took off running."

Two men and two women were wounded in the shooting, which appeared to stem from an argument, New Orleans police said.

Authorities are seeking three men who were seen on a video taken by a bystander and turned over to police. In the video, two men walked away from the initial confrontation before returning with a third man, at which point gunfire erupted, The Associated Press reported.

One male victim was in surgery Saturday night, with shots to the abdomen, thigh and pelvis, New Orleans Police Department spokesman Frank Robertson said. The other three victims were listed in stable condition, he said.

Despite the interruption, partying continued well into the night for many on Bourbon Street.

"It was pretty much a big damper on the festivities but everything's back to normal," Talbot said. "I mean it's party as usual."

ABC News Radio contributed to this report.