Miami, Jan. 6 — The man who fatally shot five people and wounded eight others Friday at Fort Lauderdale-Hollywood International Airport (FLL) appears to have acted alone, authorities said, stressing that it was too early to say whether the motive was terrorism.

Broward County Sheriff Scott Israel told a press conference at the scene that the shooter offered no resistance when officers arrested him.

The sheriff said that it would be up the FBI to determine if the shooting was an act of terrorism.

The first 911 call about shots fired at the airport was received at 12:55 pm.

Israel was joined in front of reporters by George Piro of the FBI, who said the probe was in a “very initial stage.”

The sheriff said that an earlier report from the Transportation Security Administration about additional gunfire after the 12:55 incident appeared to be incorrect, as no member of law enforcement reported hearing any shots once the assailant was in custody.

Though Israel declined to provide the shooter’s name, Florida Sen. Bill Nelson identified the man in custody as Esteban Santiago, 26, a New Jersey native.

Authorities said Santiago boarded a flight in Alaska and arrived in Fort Lauderdale via Minneapolis.

Once on the ground, he retrieved his suitcase from the baggage-claim area and then went into a bathroom, where he took a gun out of his checked luggage and loaded the weapon.

He emerged from the bathroom and began shooting people at random.

Santiago then dropped the gun and laid down on the floor in a spread-eagled position, apparently awaiting arrest.

Though flights continued to arrive and depart following the incident, airport management later suspended all operations as authorities ordered the complete evacuation of several terminals and parking garages.

Television images showed people filing out of the garages with their hands up.

Sheriff Israel said the airport would remain closed until the various local, state and federal law enforcement agencies completed a thorough search to rule out any further threats.

The Federal Aviation Administration barred flights to and from Fort Lauderdale-Hollywood International pending further notice.

Spirit Air‘s Ft. Lauderdale – Costa Rica flights (in and out of the Juan Santamaría International Airport – SJO) were canceled yesterday.

The airport handles an average of 80,000-100,000 passengers a day, director Mark Gale said.

Media outlets reported that Santiago was a six-year veteran of the National Guard and had served a tour of duty in Iraq. The suspect’s brother and girlfriend told the press that he had been getting treatment for psychological problems.

Santiago was living in Alaska with his girlfriend and their child.

President Barack Obama was informed about the shooting, National Security Council spokesman Ned Price said, while President-elect Donald Trump tweeted: “Monitoring the terrible situation in Florida. Just spoke to Governor Scott. Thoughts and prayers for all. Stay safe!” EFE