An officer at the Bishop International Airport was stabbed in the back and neck on Wednesday in what is being seen as a possible terror attack in Flint, Michigan, local media reports said.
The officer, identified as Lieutenant Jeff Neville, is in stable condition.
According to reports, the attacker allegedly shouted "Allahu Akbar" before stabbing Lieutenant Neville.
Neville was stabbed on the public side of Bishop International Airport's main terminal, according to the Transportation Security Administration.
The suspect was taken into custody at the airport and is currently being questioned by law enforcement officers.
All passengers are safe and were evacuated, the airport said on Facebook. The airport is closed until further notice.
The FBI, with local, state and federal law enforcement agencies is jointly investigating this incident to determine the nature and motive for the attack.
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The FBI is investigating the stabbing "as act of terrorism", the CNN reported.
The suspect is said to be from Quebec and has a Canadian passport.