Pakistan's Civil Aviation Authority reportedly cabled all national and international carriers Tuesday night to stop their flights to Peshawar International Airport effective Wednesday. In another development, police on Wednesday announced their first arrest in the March attack on a Sri Lankan cricket team in the city of Lahore. Lahore Police Chief Pervez Rathore told reporters that the suspect, Mohammad Zubair, was a member of the Punjabi Taliban, an offshoot of the banned Lashkar-e-Jhangvi group accused of having ties to al-Qaida. Seven players were wounded and six policemen killed when militants attacked the team bus at a traffic roundabout with automatic weapons, a rocket and a grenade. Rathore said Zubair confessed, adding that the group had planned to take the cricket players hostage. He said six other suspects also were identified but have eluded capture, perhaps after fleeing into the Waziristan region in the west or over Pakistan's border with Afghanistan. Pakistan's military also said Wednesday that it killed 22 militants in the Swat Valley over the past day, including a local commander, as the army sought to wrap up a weeks-long offensive in that area of northwest Pakistan before an expected push into Waziristan. A security official said the Peshawar airport was shut down after an intelligence agency warned of a possible terrorist attack against passenger aircraft by a militant group based in the Darra Adam Khel tribal region. The group, part of Pakistan's homegrown Taliban, is led by Tariq Afridi, a militant previously associated with Lashkar-e-Jhangvi. Afridi earlier threatened to attack passenger aircraft if the government didn't halt its offensive against militants in tribal areas. Afridi's latest ultimatum to the government ran out Monday. It was not immediately clear whether the intelligence warning was based on an intercepted message or whether it was a precautionary measure. Passengers were evacuated from the domestic and international departure lounges of the airport, and all flights were diverted to Benazir International Airport in Islamabad, the capital, about 100 miles to the east. (Begin optional trim) Civil aviation officials said the Peshawar airport was closed for 'technical reasons' until midnight. But passengers said they were told by terminal staff there would be no flights for the next three days. All entry points to the airport were closed, and passengers reported seeing troop movements. Hundreds of passengers waiting at the departure lounge were asked to leave the premises, and all outgoing flights were canceled. (End optional trim) Staff writer Magnier reported from Lahore and special correspondent Ali from Peshawar. 