Pakistani army officials say one of their helicopter gunships has crashed near the Afghan border and two people are feared dead. Pakistani army spokesman Maj. Gen. Athar Abbas says the Cobra helicopter went down Wednesday in the Teera Valley in Pakistan's Khyber tribal area. Another army official said the helicopter's pilot and gunner are missing and feared dead. He said the crash appeared to have been caused by either bad weather or a mechanical failure, the Associated Press reported.