The FBI was investigating a stabbing at the international airport in Flint, Michigan, as a possible act of terrorism, CBS News justice reporter Paula Reid reports.

Authorities said a suspect was in custody. An airport police officer was stabbed in the neck in the public part of the main terminal at Bishop International Airport Wednesday morning, CBS News has learned. The wound was superficial.

Michigan State Police Lt. Dave Kaiser confirmed to CBS News the victim has been identified as Jeff Neville, a retired lieutenant with the Genesee County Sheriff's Office. Neville was listed in stable condition at Hurley Medical Center in Flint. "

Please keep the attacked officer in your thoughts & prayers," Gov. Rick Snyder said on Twitter.

Tim Wiley with the FBI's Detroit field office said a suspect was in custody and was being questioned by authorities.

"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," Wiley said. "Based on the information that we have at this time, we believe this to be an isolated incident." Stabbing at Michigan airport being investigated for terror links

The FBI doesn't have specific or credible information of a threat to the Flint community, Wiley said.

Michigan State Police Lt. Mike Shaw said nobody else was believed to have been involved. Officials posted on Facebook that the airport was evacuated after the incident.

The post added that passengers were safe and were being told to check for flight delays or cancellations. The state police said on Twitter that the airport was closed.

The government source told CBS News authorities were sweeping the airport with canine teams.

Ken Brown told The Flint Journal he was dropping off his daughter at the airport and saw the officer bleeding from his neck. He said he saw a man detained by police and a knife on the ground.

"The cop was on his hands and knees bleeding from his neck," Brown said. "I said they need to get him a towel."

CBS Saginaw affiliate WNEM-TV reports that the police chief has stationed officers around Flint City Hall until further notice.

"At this time we are taking extra precautions just to be safe," Mayor Karen Weaver said in a statement. Flint is about 50 miles northwest of Detroit.