Gov. Rick Scott vowed that the shooter or shooters would be brought to justice, calling the incident "horrible, tragic news."
"The first thing you think about is as a parent or grandparent, you can't imagine this happening to any family," he said.
We are still learning the details about what happened this morning. We will continue to pray for the victims and their families.
Earlier, officers said three people left the scene in a car with two later fleeing the vehicle, according to WBBH reporter Gabrielle Shirley.
Shirley reported that "a big crowd of people scattered everywhere taking cover" when the gunshots rang out.
She added that an employee at the club was too shocked to speak. "He was just shaking his head, and through tears giving me the indication again that this is a very, very traumatic experience here, he could not even form words," Shirley added.
Detectives had yet to determine a motive Monday.
The shooting comes a little more than a month after the massacre at a gay club in Orlando that left 49 people dead, making it the deadliest shooting in modern U.S. history.