Four people were killed in a Jacksonville Landing attack, including the gunman, a law enforcement official told the incident. Eleven others were injured, the source said.
The suspect, who was only identified as a white man, died at the scene, Sheriff Mike Williams said at a press conference, adding that there were no outstanding suspects. The sheriff's office said on Twitter that it transported "multiple" deaths and "many" to hospitals.
At least three people were shot to the Memorial Hospital during the shooting and all are in stable condition, hospital spokesman Pete Moberg said. A person is being treated for a minor injury at the Baptist Medical Center, spokeswoman Cindy Hamilton said.
UF Health Jacksonville received six patients, including one in serious condition. The victims were between 20 and 35 years old. The victim in serious condition had several gunshot wounds on the chest, and doctors are monitoring the patient's heart.
At least three patients were shot once, and three were shot more than once, UF Health said.
After several shots are heard, people can be heard screaming, and a person screams, "Oh f **, how did he shoot me?" The stream did not show the shooting.
The event was the Southern Qualifier for the Madden NFL Championship Series for the Madden NFL 19, according to the bar's Facebook page.
"This is your chance Get your seat at the first Major's Live Finals in October 2018. Do not hesitate to secure your place, "reads the post in part.
"I'm Still Shocked"
Ryen Alemon, who came from Texas to attend the gaming tournament, said he ducked and ran to the bathroom when he heard the shots , He stayed there for about 10 minutes and then ran away from the scene.
"I'm still shocked, I can barely talk," he said.
Sheriff Williams said the area had been cleared by witnesses and asked these people not to come to town because of the size of the crime scene.
Malik Brunson said he was in a nearby Hooters restaurant when the shootings took place.
"All I heard was that he had a gun and the shootout started, one of the men was shooting guns in Hooters, they locked us up in the restaurant," he said in a social media message.
CompLexity Gaming Founder and CEO Jason Lake said one of their players, a 19-year-old who goes from Drini, was shot in the thumb, but managed to escape and it all goes well. Lake told CNN that filming could help the growing eSports industry rethink event security.
"When someone comes to an event like this that's about good athleticism and teamwork and only good vibes, it's heart-rending," he said. "I think the eSports industry as a whole needs to step back in order to further strengthen our security."
President Donald Trump was briefed on the situation, said Sarah Sanders, White House spokeswoman. Governor Rick Scott said he spoke to President Trump, who offered federal funds.
Federal police oversee the situation in Jacksonville. The Office for Alcohol, Tobacco, Firearms and Explosives (ATF) responds to the scene in Jacksonville Landing, a law enforcement agency said CNN.
"The nation looks back to Florida with sorrow and heavy heart," former Congresswoman Gabrielle Giffords, who was badly injured in a mass shooting, said in a statement
CNN Darran Simon, Amanda Jackson, Dakin Andone, Sheena Jones and Evan Perez contributed to this report.