Two U.S. fighter jets escorted an Air France passenger plane to a safe landing in New York Monday morning following one of several threats that were made against commercial aircraft.

An anonymous threat came in a telephone call to a Maryland State police barracks Monday, prompting the military to scramble F-15 jets as Air France Flight 22 from Paris arrived at New York’s John F. Kennedy International Airport. The threat was later deemed not credible and the plane cleared.

Air France said passengers disembarked “normally.”

News reports also say a threat was made against American Airlines Flight 131, which arrived at the JFK airport from Birmingham, England, but that threat was also considered not credible.

In addition, reports say a Saudi Arabian Airlines flight was checked at JFK due to an unspecified threat, and that threats were also made against at least two flights at Newark Liberty International Airport.

It is not clear if all the threats were made by the same individual.

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