Authorities are investigating the stabbing of an airport police officer at Bishop International Airport in Flint, Michigan, on Wednesday morning, as an act of terrorism, David Gelios of the FBI said Wednesday.
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The police officer, Lt. Jeff Neville, was stabbed in the neck, and is in stable condition and expected to fully recover, officials said.
The suspect, who was taken into custody after the incident, was identified as Amor Ftouhi, 49, a Canadian man who legally entered the U.S. in Lake Champlain, New York, on June 16, and later traveled to Flint, Gelios said.
Officials said the suspect was outside the TSA screening area at the time of the attack.
Ftouhi allegedly went into a public restroom, then dropped his bags and "came out, pulled out a knife, yelled 'Allahu Akbar' and stabbed Lt. Neville in the neck," Gelios said.
Gelios said the attacker, armed with a roughly 12-inch knife with an 8-inch serrated blade, "continued to exclaim 'Allah' and he made a statement to the effect of 'you killed people in Syria, Iraq and Afghanistan,' and, 'We're all going to die.'"
Officials said Neville got the suspect to stop the attack, and that "Neville never stopped fighting" until the suspect was in handcuffs, which happened within about one minute.
The suspect was interviewed about his motivations and was cooperative, officials said. No one else appears to have been involved and there is no information to suggest a wider plot, officials said.
Canadian police also searched an apartment in Montreal where the suspect is believed to have lived, authorities said.
There's no indication that the suspect spoke to anyone before the attack, but police said they were questioning three people who had been staying at the Montreal residence, according to The Associated Press.
Officials said it appears the suspect "has a hatred for the United States and a variety of other things that motivated him to coming to the airport today to conduct this act of violence."
After the incident, a complaint was filed against the suspect for "violence at an international airport," but officials noted that there could be more charges in the future. The investigation is ongoing as a part of a joint operation with Canada, officials said.
Attorney General Jeff Sessions said in a statement, "I want to assure all our law enforcement across the nation, any attack on someone who serves and protects our citizens will be investigated and prosecuted to the fullest extent of the law." He added, "Our prayers are with the officer and his family for a full recovery.”
The airport, which was evacuated and shut down, was later reopened. All passengers were safe amid the investigation, officials said.
An airport official said Wednesday afternoon that Neville is "doing fine" and "resting comfortably" at a hospital.
The FBI said earlier, "We believe this to be an isolated incident" and there is "no specific, credible information that there is a threat to the Flint community."
Michigan Gov. Rick Snyder wrote on Twitter, "There is simply no room for senseless acts of violence such as this."
"It is my hope that we can come together as one Michigan in the face of this terrible incident, just as people did today at Bishop Airport," Snyder said. "Even with this attack, we must continue to balance our need for increased security with understanding and tolerance."
Snyder also thanked all law enforcement officers and first responders and said he is "heartened to hear that Lt. Jeff Neville is expected to make a full recovery."
The Canadian Department of Public Safety said in a statement, "We condemn this heinous and cowardly attack. The officer and his family and colleagues are foremost in our thoughts and prayers.
ABC News' Jeffrey Cook, Rachel Katz, Karma Allen and Dominick Proto contributed to this report.