PARIS (AP) _ French investigators said Monday that a stray metal piece that gashed a tire of a supersonic Concorde in July _ setting off a chain of events that doomed the flight _ apparently came from a Continental Airlines plane.

The Continental DC-10 took off from the same runway minutes before the Concorde, which caught fire and crashed into a hotel, killing 113 people, said France's Investigation and Accident Office.

A DC-10 had a missing part ``which appeared to be identical to the metal piece found on the runway after the July 25, 2000, accident,'' said a statement from the office, known by its French acronym BEA.