Two passengers died as unidentified attackers opened fire at Allama Iqbal International Airport Lahore, police said on Wednesday. Airport Security Forces personnel took the suspects into custody from the airport. Police said the two suspects have been identified as Arshad and Shan. The firing within the airport lounge caused panic among people. Police said that the suspects reached the airport in a taxi. Firing also wounded a man. It was learnt that the two deceased victims had returned after performing Umra. Heavy contingent of police reached the airport to secure the premises. The entry of vehicles at the airport was earlier barred as a precaution. ASF officials began an inquiry after taking the suspects into custody. One of the suspects said that he committed the killings to avenge murder of brother-in-law and nephew. The suspect further said that the car was checked at the airport as well, adding that the pistols were hidden under the seats of the taxi.