DUBAI, United Arab Emirates (AP) ó Five prisoners sought by the U.S. in a swap with Iran flew out of Tehran on Monday, an official said. Flight-tracking data analyzed by the AP showed a Qatar Airways flight take off at Tehranís Mehrabad International Airport, which has been used for exchanges in the past. Iranian state media soon after said the flight had left Tehran. The official spoke to The Associated Press on condition of anonymity because the exchange was still in process. Earlier, official