'Gunmen opened fire during 'teen night' outside Florida nightclub

Many youngsters feared among the wounded

One shooter arrested, second at large - local media

Comes six weeks after the Orlando nightclub massacre

A history of mass shootings in the US since Columbine

At least two people have died and 17 others were injured after gunmen opened fire outside a nightclub in Fort Myers, Florida.

It comes six weeks after a lone gunman shot dead 49 people at a gay nightclub in Orlando, Florida.

The venue, Club Blu, was hosting a teen night when the shooting take place, at roughly 12.30am on Monday morning.

Terrified youngsters were forced to "dodge cars and bullets" as they sprinted to safety, the mother of one girl who escaped uninjured said.

Fort Myers police said in a statement that they were "seeking to determine a motive" for the shooting, which appears to have been carried out by at least two gunmen.

Three of the attackers have already been arrested, they added.

There gave no indication as to whether the attack was terror-related.

An attack on a gay nightclub in Orlando, Florida on June 12 left 49 dead in the worst gun massacre in recent 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 the 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 renewed debate about gun laws in the United States.

After the incident, the White House denounced the "cowardice" of US senators who failed to pass gun control legislation.

President Barack Obama, a Democrat, has repeatedly called for Republicans to realize 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.

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.