Lt. Jeff Neville, 55, was stabbed in the neck Wednesday morning by a man who purportedly yelled "Allahu Akbar" while at Bishop Airport in Flint, Michigan, NBC reported.
Neville was taken to a local hospital where he was admitted under "critical" condition, but is currently listed as stable.
NBC Nightly News reported that the FBI is investigating the crime as a possible terrorist act.
It was also reported by NBC that the suspect is in FBI custody and is being questioned about the attack.
The FBI released an official statement Wednesday afternoon on the stabbing of Neville:
"This morning, law enforcement officers from a number of organizations including the FBI’s office in Flint, Michigan, responded to Flint’s Bishop International Airport after receiving the report of a stabbing of an airport police officer who is presently considered to be in stable condition.
The suspect was taken into custody at the airport and is currently being questioned by law enforcement officers.
The FBI, with our local, state and federal law enforcement partners, is jointly investigating this incident to determine the nature and motive for the attack. We are aware of reports that the attacker made statements immediately prior to or while attacking the officer, but it is too early to determine the nature of these alleged statements or whether or not this was an act of terrorism.
Based on the information that we have at this time, we believe this to be an isolated incident. We currently have no specific, credible information that there is a threat to the Flint community."
Michigan's KKCO-TV reported that the suspect approached Neville from behind and stabbed him in the neck with a Bowie-type knife.
Ken Brown, who claimed to witness to the stabbing, alleged that the officer was "on his knees" and "bleeding from the neck" after the attack.
"The cop was on his hands and knees bleeding from his neck," Brown told MLive. "I said they need to get him a towel."
This story will update as more information becomes available.