Hundreds of people were gathered at a New Orleans playground for a music video shoot when two groups in the crowd opened fire on each other, wounding 16 people in the Sunday evening violence, police said.

Police were on their way to break up a big crowd at Bunny Friend Playground when gunfire erupted at the park in the city's 9th Ward, the police said in a statement on Sunday.

Police said 10 people were taken to the hospital in ambulances while another six were taken in private vehicles. Photos of the scene showed emergency workers wheeling some of the wounded to ambulances on gurneys while other people who appeared to be in pain lay on the ground.