President Joe Biden says the US airlift from Kabul will continue despite a jihadist attack that killed over 90 people including 13 US service members.
More than 100,000 people have been evacuated from Afghanistan, which fell to the Taliban on 15 August.
But many more Afghans have been rushing to the airport ahead of the 31 August deadline for US forces to leave.
Biden vowed to complete the mission, adding that the US will not be deterred by terrorists.