Fort Myers (United States) (AFP) - Two youths were killed and 20 people injured early Monday in a shooting outside a Florida nightclub as parents were picking up their children from a "teen night" event.
Police in Fort Myers, Florida identified the dead as 14-year-old Sean Archilles and 18-year-old Stefan Strawder, described by local media as a star high school basketball player.
The motive for the shooting in the parking lot of Club Blu was not immediately known, but police said the incident in the city on Florida's Gulf coast was "not an act of terror."
"We have three persons of interest in custody and we are still looking for others," interim Fort Myers Police Chief Dennis Eads told a news conference.
Gunfire erupted outside the venue at around 12:30 am (0430 GMT) as a "Swimsuit Glow Party" was breaking up, police, witnesses and the club said.
"We lost two teenagers," Florida Governor Rick Scott told a news conference, raising the toll of injured to 20. Police earlier said at least 14 to 16 people had sustained minor to life-threatening wounds.
"Our heart goes out to everybody impacted by this," Scott said. "This state believes in justice, so those that have been involved in this will be accountable."
The shooting came just six weeks after a gunman killed 49 people at a gay club in Orlando, Florida, the worst massacre on US soil since 9/11.
- 'There were kids' -
Witnesses described people scattering at the sound of gunfire, ducking and running behind a nearby apartment building.
"As the club was closing and parents were picking their children up... that's when all this happened," Club Blu said in a statement.
"We are deeply sorry for all involved. We tried to give the teens WHAT WE THOUGHT WAS A SAFE PLACE TO HAVE A GOOD TIME," it said, adding that there was armed security inside and outside the club.
"It was a young teen event. There were kids. The kid I was holding in my lap, he was 14 years old that got shot," Tatianna Nouhaioi, a neighbor, told ABC News.
"And then there was a little girl who also got shot and she was 13. (...) there was kids 13, 14, 15, 16."
Television images of the scene showed one of the wounded being loaded into an ambulance while police with flashlights scoured the parking lot for evidence, marking where shell casings fell.
A nearby home and vehicles were also shot at, resulting in one minor injury, police said.
The area was later declared safe, but multiple streets were closed.
- Active scene -
Police said it remained an active crime scene.
"Investigators are working very hard to determine a motive and answer many of the questions you have submitted," said an earlier police statement. "However, at this time those questions will not and cannot be answered."
City mayor Randall Henderson said Fort Myers is "not immune to crime and unfortunately not spared acts of violence and shootings as other cities across the country have experienced."
"We have watched events like this unfold too many times, but when it occurs in our city, it hits directly to our hearts," he said.
- Orlando attack -
An attack on June 12 at the Pulse nightclub in Orlando -- Florida's theme park hub -- left 49 dead in the worst mass shooting in US history.
Police killed the gunman, Omar Mateen, a 29-year-old US citizen of Afghan origin, after a three-hour standoff.
The Islamic State jihadist group claimed responsibility for that attack, calling Mateen "one of the soldiers of the caliphate." US authorities have said he was apparently radicalized after watching jihadist propaganda online.
That rampage and other recent shootings have revived the fraught debate about gun laws in the United States.
President Barack Obama, a Democrat, has repeatedly called for Republicans in Congress to confront the cost of their opposition to gun control and spending on mental health and drug treatment.
"We refuse to fund drug treatment and mental health programs. We flood communities with so many guns that it is easier for a teenager to buy a Glock than get his hands on a computer or even a book," he said at a recent memorial service for five police officers shot in Dallas.
After the Orlando massacre, the White House denounced the "cowardice" of US lawmakers who failed to pass gun control legislation.
Last month, Democratic lawmakers staged a virtually unprecedented 24-hour sit-in in Congress after Republicans refused to allow a vote on two widely supported measures.