The National Transportation Safety Board is examining pilots' reports of possible missile flights last month in the New York City area.

"We're looking at it, as we would any reports of this type," board spokesman Ted Lopatkowicz said Wednesday.The possibility that a missile was responsible for the explosion of TWA Flight 800 last July 17, killing 230 people, has not been ruled out by investigators.

NTSB Chairman Jim Hall told the Senate Transportation Committee on Wednesday that agency will hold a public hearing on the explosion sometime in late summer.

Hall said that while it is apparent that an explosion occurred in the center fuel tank of the Boeing 747, "the origin of the explosion is not yet known."