Pakistan: Gunmen attack Karachi Airport security training facility in second assault

Pakistani officials say a checkpoint at Karachi Airport is under attack by gunmen after another large assault earlier this week. The facility is now closed, all flights have been canceled. "The ASF academy is under attack. There is gunfire. The extent of the damage is not clear," a senior official at the Federal Investigation Agency told Reuters. It was unclear who was firing at whom. The checkpoint is 500 meters from the main entrance to the airport. Ambulances have been seen rushing to the scene, a witness told Reuters.