Media playback is unsupported on your device Media caption Police said they were on way to break up a large crowd when shots were fired

At least 16 people have been wounded in a gunfight at a park in New Orleans, police say.

Police spokesman Tyler Gamble said officers were on their way to break up a big crowd at the city's Bunny Friend Park when shots were fired.

Ambulances took 10 people to hospital, Mr Gamble said, and others were taken by private vehicles.

It is yet not known what started the shooting or how severe the injuries are.

According to Mr Gamble, there were two groups at the park - one had walked there as part of a neighbourhood parade, while others were watching or participating in a video being made in the park.

Witnesses told local TV station WWL that there were several hundred people at the park and that two gunmen opened fire in the crowd.

"At the end of the day, it's really hard to police against a bunch of guys who decide to pull out guns and settle their disputes with 300 people in between them," New Orleans Mayor, Mitch Landrieu, said.

"That's just not something you can tolerate in the city."