sandbar

May 9 (UPI) — Multiple injuries were reported Saturday in what rescuers called a “mass casualty” event involving a possible boat explosion at a popular Miami sandbar.

First responders to the scene of a possible boat explosion at around 12:45 p.m. “found multiple patients with various injuries, some burned, some minor injuries,” Miami-Dade Fire Rescue Battalion Chief Juan Arias told reporters.

“All patients were treated and transported to local hospitals,” he said, adding that the incident was designated as a “level 2 mass casualty incident, which gives us the sufficient amount of units on scene to go ahead and deal with the number of patients that we had.”

Arias said the injuries were from burns and that some victims suffered “traumatic” injuries.

The U.S. Coast Guard and Florida Fish and Wildlife Commission personnel also responded to the scene at Haulover Sandbar, a favorite party cruise spot for tourists located in Biscayne Bay north of Bal Harbour, Fla.

Arias did not specify how many people were injured in the incident, but multiple media reports quoted rescuers as saying 11 people were taken to area hospitals.

Witnesses said the injuries were caused by an explosion aboard a boat which knocked several people overboard and left them with burns.

A marina worker told WTVJ-TV the explosion was caused by a gas leak that happened when the boat’s captain turned on the ignition. Another person who was aboard the boat told the broadcaster there were 14 people on the vessel before the explosion.

An investigation into the incident was continuing into Saturday night.