The shooting happened around 7:50 p.m. as the park was closing.

Several ambulances were called to the scene.

The shots came from a single vehicle in the parking lot that immediately drove away, according to a statement from Six Flags.

Two people were taken to the hospital for evaluation and a third person refused treatment.

Video circulating on social media shows parkgoers crouched down and hiding where they had been in line.

Witnesses says they saw other other parkgoers running after shots were fired.

"I thought there were fireworks right away. Then we saw hundreds of people running," said Charlie Donda. ""It was pretty scary but we are safe."

Charlie was with his friends and ran to the water park to hide. His father, Brian Donda, said his son did the right thing.