( CNN ) -- Gunmen fired on a Pakistan International Airlines flight Tuesday after it landed in Peshawar , killing one passenger and injuring a flight attendant , said airline spokesman Mashood Tajwar . Flight 756 left Riyadh , Saudi Arabia , with 170 passengers on board . The plane was fired on after landing at Bacha Khan International Airport . Passengers were still inside the aircraft . Police and security forces have cordoned off the area and are searching for attackers . The airport remained open , said Civil Aviation Authority spokesman Abid Qaimkhan . No one has claimed responsibility . Bacha Khan International Airport in Peshawar is often targeted by militants . Two rockets landed at the airport on April 28 , damaging a runway . No one was killed in that attack . Aliza Kassim and Sophia Saifi contributed to this report .
One passenger was killed when gunmen fired on a flight landing in Peshawar . The aircraft was carrying 170 passengers from Riyadh , Saudi Arabia . Two rockets landed at the airport in an April attack ; no one was killed .