The gunman in a shooting that killed four people and injured several others at Naval Air Station Pensacola on Friday morning was a Saudi national, according to Republican Florida Gov. Ron DeSantis.
The FBI has taken the lead in the continuing investigation, though there has been no immediate determination on whether the shooting was terror-related, two sources told USA TODAY.
Authorities said the suspect was among the four people killed. Eight others, including two deputies, were injured and taken to the hospital.
The shooting happened just two days after a U.S. Navy sailor shot three people and killed himself at Pearl Harbor.
Here's what we know:
How many people were injured at NAS Pensacola?
Four people, including the shooter, were confirmed dead, authorities said in a press conference Friday morning. Eight were injured.
Eight patients were accepted to nearby Baptist Hospital. One died there. Three people died on the base. Authorities later announced that another person had also been injured.
The names of the victims will not be released until the next of kin have been notified, the U.S. Navy said in a statement.
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When did the shooting happen?
The shooting began around 6:30 a.m. central time Friday and was reported around 7 a.m., authorities said. Authorities responded within "three to five minutes," they said.
Who is the shooting suspect?
The gunman was a Saudi national training in aviation at the base, DeSantis said in a press conference.
He was one of “a couple hundred” international students training at the base, authorities said.
The gunman died just before 8 a.m. central time, Escambia County Sheriff's Office spokeswoman Amber Southard said.
What weapon did the gunman use?
The shooter used a handgun, authorities said.
Weapons are not allowed on the base, except for security personnel, authorities said.
What is NAS Pensacola?
The air station is the primary training base for all U.S. Navy, Marine Corps and Coast Guard officers pursuing designation as Naval Aviators and Naval Flight Officers.
NAS Pensacola is located in Escambia County in Florida's western Panhandle and employs more than 16,000 military and 7,400 civilian personnel.
It's also the home of the Blue Angels and the National Naval Aviation Museum.
Why was a Saudi national at NAS Pensacola?
Training international students at NAS Pensacola is a core part of the base's mission.
International students can complete all or part of the typical 18-month syllabus on base and must go through several federal vetting processes before training at NAS Pensacola.
"The way that program works is that the foreign government has to certify that these are the best of their best, that these are their future generals and admirals and senior military officials for their countries," said Rep. Matt Gaetz. “The U.S. State Department does a scrub on those prospective trainees, and after that they matriculate into the program.
“That’s a really important part of what our military does, because it has people use our systems and train alongside our military members,” he added. “They are more receptive and more capable and more willing to work with us when the time arises, should U.S. interests be impacted.”
Commanding Officer Capt. Tim Kinsella said Friday that "a couple hundred" international students are training at the base.
Where on the base was the shooting?
The shooting happened on two floors of a classroom building near Radford Road on base. Both gates were closed and the base was locked down.
The Navy base will be closed all day Friday.
How are lawmakers, officials reacting?
"This is a tragic day for the city of Pensacola," said city Mayor Grover Robinson. "We’re a military town. Our hearts and prayers are connected to those that serve us every day. And certainly the expectation that this would happen to us here, at home, was unexpected."
Responding to three recent tragedies on a U.S. base, Acting Secretary of the Navy Thomas Modly called for cooperation to prevent future incidents.
"Our entire Navy and Marine Corps team is struck and deeply saddened by the attacks within our own naval family over the past several days, at Little Creek, Virginia, last week, Pearl Harbor, Hawaii, on Wednesday, and today in Pensacola, Florida. These acts are crimes against all of us," Modly said.
President Donald Trump told lawmakers that King Salman of Saudi Arabia called to express his condolences.
"It's a horrible thing that took place and we're getting to the bottom of it," Trump told reporters.
Various lawmakers reacted to the shooting on Twitter.
Vice President Mike Pence wrote that they were praying for the victims and their families.
Saddened to hear of the horrible shooting at Naval Air Station Pensacola & continuing to monitor the situation. Praying for the victims & their families & we commend the first responders for their swift action in taking down the shooter & getting those on base to safety.
— Vice President Mike Pence (@VP) December 6, 2019
U.S. Rep. Matt Gaetz, R-Fla., said in a video that he was “deeply saddened” by the shooting.
"NAS Pensacola is a huge source of pride for all of northwest Florida. It is the home of naval aviation. It is the home of the Blue Angels," Gaetz said. "In our home, this is who we are. This is what we love."
— Rep. Matt Gaetz (@RepMattGaetz) December 6, 2019
DeSantis wrote that he was deploying Florida's Disaster Recovery Mental Health Coordinator to coordinate mental health resources for families impacted by the shooting.
I have spoken with NAS Pensacola Base Commander Timothy Kinsella and @ECSONews Sheriff David Morgan.
.@FLSERT is also deploying Florida's Disaster Recovery Mental Health Coordinator to coordinate mental health resources for families impacted by this tragic shooting.
— Ron DeSantis (@GovRonDeSantis) December 6, 2019
U.S. Sen. Rick Scott, R-Fla., thanked first responders.
Spoke with Escambia County Sheriff David Morgan as well this morning to offer any assistance to our law enforcement.
These brave officers did an incredible job responding to the threat. We are truly thankful for their commitment to protecting our communities. https://t.co/s6gUBt49tk
— Rick Scott (@SenRickScott) December 6, 2019
"Please pray for everyone impacted by this horrible situation," U.S. Sen. Marco Rubio, R-Fla., wrote.
Just spoke to commanding officer of Naval Air Station Pensacola. We are in close contact with all the relevant officials & closely monitoring events. Please pray for everyone impacted by this horrible situation.
— Marco Rubio (@marcorubio) December 6, 2019
This article originally appeared on USA TODAY: NAS Pensacola shooting: Air station suspect, victims what to know