Multiple rockets fired at Kabul airport

As many as five rockets were fired at Kabul's international airport but were intercepted by a missile defense system, a U.S. official told Reuters, as the United States' nears the complete withdrawal of its troops from the city.

The official, speaking on the condition of anonymity, said the rockets were fired early Monday morning Kabul time, though it was unclear if all were brought down by the defense system.

Initial reports did not indicate any U.S. casualties, but that information could change, the official said.

Earlier on Sunday, American forces launched a drone strike in Kabul targeting a suicide bomber in a vehicle who was aiming to attack the airport.

There is increasing concern that ISIS (terrorist group banned in Russia) militants will launch further attacks on the airport as U.S. troops hurry to evacuate remaining American citizens and at-risk Afghans, before competing their own withdrawal by Aug. 31, Reuters reported.