A passenger on a casino shuttle boat consumed by a large fire off Florida's Gulf Coast has died.

Regional Medical Center Bayonet Point spokesman Kurt Conover said the woman died late Sunday, hours after the fire. He said she had arrived less than an hour earlier after becoming ill.

Officials had originally said none of the 15 injuries were life threatening. Passengers had experienced chest pain, smoke inhalation and other injuries. Conover said eight other people treated at Bayonet Point have been released.

Fire officials and witnesses say people leaped into chilly waters and reached shore in Port Richey in the greater Tampa Bay area after the fire Sunday afternoon.

A cause wasn't immediately clear.