Police Superintendent Ronal Serpas told reporters at least 12 people were shot during the parade in the city's 7th Ward.
Police say the incident happened about 2 p.m. Sunday at the intersection of Frenchmen and Villere streets.
The Times-Picayune reports there were about 200 people at the event when gunfire erupted.
Serpas told reporters the victims include a 10-year-old who sustained a minor wound. WDSU-TV reports at least four people were in surgery and others had been taken to four area hospitals.
Nobody has been arrested. It's unclear what sparked the gunfire.
Police are said to be looking for three people in connection with the attack.
This is a developing story...
