Delta says 2 of its international planes threatened; other anonymous calls deemed not credible

NEW YORK, N.Y. – Delta says two of its international planes have been threatened, bringing to at least six the number of planes to receive such threats.

The threats have been deemed not credible. Planes have been searched and cleared.

Atlanta-based Delta Air Lines Inc. says threats were to a Paris-to-Boston flight and a London-to-Newark, New Jersey, flight.

Anonymous telephone threats against commercial airliners caused a scare on Monday involving other international flights to New York.

The FBI says in one instance U.S. military jets escorted an Air France flight into New York City after someone claimed a chemical weapon was aboard.