NEW ORLEANS - New Orleans police have released a bystanders' video of what they say is an argument involving some people in a Bourbon Street throng raucously celebrating ahead of Mardi Gras when shots ring out, followed by screams.

Police spokesman Frank B. Robertson says the shooting in the crowded French Quarter just days before Fat Tuesday left four people wounded, including a male victim shot in the abdomen, thigh and pelvic area. He says one other male and two other females had lesser gunshot wounds.

The footage showed many partying in costumes before what police described as an argument between the most seriously injured male and two other men. Four rapid shots are heard, then screams.

Authorities have not said if they have made any arrests, saying they sought the public's help.