A Delta Air Lines pilot preparing to land at New York’s LaGuardia Airport was warned to use “extreme caution” after an anonymous caller falsely reported a possible rocket launcher nearby. The scare unfolded as Delta Flight 2604, arriving from Detroit with more than 100 people on board, was on approach to LaGuardia. Air traffic controllers issued a MANPAD alert at 8:27 p.m. “MANPAD alert issued at LaGuardia Airport at 0027. “Basically, it was a report of a rocket launcher,” the controller added. “No need to respond, Delta 2604,” the controller told the pilot.