FORT LAUDERDALE, Fla. — A gunman opened fire in a baggage claim area at Fort Lauderdale-Hollywood International airport Friday, killing five people, injuring eight and sending terrified passengers running through the airport grounds before police grabbed the suspect unharmed, according to law enforcement authorities.

Witnesses said the male shooter emptied several magazines of bullets, then dropped to the floor spread-eagled to await arrest. He was taken into custody without incident by a Broward County sheriff's deputy, according to Sheriff Scott Israel.

“People started kind of screaming and trying to get out of any door they could or hide under the chairs,” a witness, Mark Lea, told MSNBC. “He just kind of continued coming in, just randomly shooting at people, no rhyme or reason to it.”

A shooting victim arrives at Broward Health Trauma Center in Fort Lauderdale, Fla., Jan. 6, 2017. (Taimy Alvarez/South Florida Sun-Sentinel/AP Photo)
A shooting victim arrives at Broward Health Trauma Center in Fort Lauderdale, Fla., Jan. 6, 2017. (Taimy Alvarez/South Florida Sun-Sentinel/AP Photo)

Chip LaMarca, a Broward County commissioner, was briefed on the airport shooting by Broward Sheriff’s office. On his Twitter account, he said the shooter arrived in Fort Lauderdale aboard a flight with a gun in a checked bag.

"He claimed his bag and took the gun from baggage and went into the bathroom to load it. Came out shooting people in baggage claim," LaMarca tweeted.

According to media reports, the suspect took a Delta flight from Anchorage to Minneapolis-St. Paul Thursday night and flew the last leg to Fort Lauderdale Friday morning.

Sheriff Israel said authorities had not established a motive for the shooting and that it was too early to declare it a terrorist act.

"At this point, it looks like he acted alone," Israel told reporters. He called the shootings a "horrific, horrific act."

A federal law enforcement official, who is not authorized to comment publicly on the case, identified the suspect as 26-year-old Esteban Santiago. Sen. Bill Nelson, a Florida Democrat, said earlier that the gunman was carrying a military ID in that name.

Santiago was born in New Jersey and was happy after the recent birth of a son, according to his aunt.

A federal law enforcement official who was not authorized to comment publicly confirmed the suspect’s name and date of birth as Esteban Santiago, born March 16, 1990.

Santiago was arrested following a shooting near a baggage claim area that left five dead and eight injured.

His aunt Maria Ruiz, who lives in Union City, said that he was an Army veteran who served two years in Iraq and came back acting strangely. However, she said that he “was happy with the kid” after the birth of his child last year.

“I don’t know why this happened,” she said during an interview at her home Friday afternoon.

FBI agents arrived at her home as she spoke to reporters.

The melee, which erupted around 1 p.m. EST, brought air traffic to a standstill at the heavily traveled airport. Some incoming flights were halted on the tarmac and, according to airport director Mark Gale, were likely to be sent to another city without allowing passengers to disembark.

The shooter, described as slender, about 5-foot-7 and wearing a blue T-shirt, did not say a word during the incident, calmly opening fire as he strolled among passengers at a baggage carousel in Terminal 2, which services Delta flights.

Mark Lea, a witness among the passengers, told MSNBC the gunman was "just randomly shooting people" with a 9 mm pistol and only stopped after emptying about 3 magazines of bullets.

"He wasn't targeting anyone particular," he said.

Nine people were injured in a shooting at the Fort Lauderdale–Hollywood International Airport in Florida. (ABC News)
Nine people were injured in a shooting at the Fort Lauderdale–Hollywood International Airport in Florida. (ABC News)

The shooting sent people scrambling onto the tarmac, some carrying luggage. Others cowered behind cars.

Video posted on Instagram appeared to show several people wounded in the baggage claim area of the terminal. One person appeared to be lying in a pool of blood with a head wound.

Paramedics could also be seen treating a bleeding victim outside the airport. Hundreds of people stood on the tarmac as an ambulance drove by.

Florida Gov. Rick Scott called the shooting a "senseless act of evil" and added that he had phoned President-elect Donald Trump to keep him informed about the case.

The U.S. Transportation Security Administration said the incident occurred in a public area, not a secure area.

Everyone evacuated off neighboring plane after reported shooting in baggage. We’re sitting on tarmac. Florida!
— Stephen Falk (@stephenfalk) January 6, 2017

I'm safe and feel incredibly fortunate. What a crazy thing...

A photo posted by Casey Prentice (@prenteye) on

President Obama was briefed about the shooting. Donald Trump tweeted about the incident, saying, "Thoughts and prayers for all."

Monitoring the terrible situation in Florida. Just spoke to Governor Scott. Thoughts and prayers for all. Stay safe!

— Donald J. Trump (@realDonaldTrump) January 6, 2017

Former White House Press Secretary Ari Fleischer was at the scene and tweeted about the shooting when it was first reported.

I'm at the Ft. Lauderdale Airport. Shots have been fired. Everyone is running.

— Ari Fleischer (@AriFleischer) January 6, 2017

Southwest Airlines has suspended all operations at the airport for the rest of the day, and says re-booking is available online.

Love Field Airport says it has heightened security measures as a precaution.

Check back for more on this developing story.