Source : Three suspects on Yemen 's list of its 25 most-wanted terrorists have been captured and two others killed recently , according to the official . Officials believed intercepts indicated potentially imminent attack . Coded words pointed to threat of attack on overseas U.S. installation , officials said . ` ` There was a sense of imminence '' in the intercepted messages , a U.S. official said . Yemeni officials said suspected bomb - maker not involved in drone strike , contrary to reports .
Source : Officials believed intercepts indicated potentially imminent attack . Coded words pointed to threat of attack on overseas U.S. installation , officials said . ` ` There was a sense of imminence '' in the intercepted messages , a U.S. official said . Yemeni officials said suspected bomb - maker not involved in drone strike , contrary to reports .