As top American diplomats flew out of the Afghan capital in the closing hours of the western evacuation under danger of more Islamic State strikes, US anti-missile defenses intercepted as many as five rockets aimed at Kabul airport.

Officials told Reuters that key US diplomats joined the 122,000 foreign nationals and Afghans who have been evacuated since mid-August, although it was unclear whether the acting ambassador, Ross Wilson, was among them.

By Joe Biden’s Tuesday deadline, the final few hundred US soldiers are expected to leave the nation, bringing an end to their country’s longest military combat, which began 20 years ago in response to the September 11 attacks.

The missiles fired on Monday morning resulted in no injuries. IS-K claimed responsibility. The White House confirmed the airport had been struck by rockets but stated airlift operations were unaffected.

According to Afghan media, the attack was fired from the rear of a truck that was later hit by a US drone strike, with numerous rockets hitting various sections of the Afghan capital. The airport’s missile defense system stopped those aiming for it.

The new assaults came after a horrific IS suicide bombing on Thursday, which killed more than 140 Afghans and 13 US soldiers waiting for outside packed airport gates in the hope of catching a flight out of Kabul.

More assaults are expected in the next 24 to 36 hours, according to Washington, which has conducted out two airstrikes against IS sites, including one on Sunday that prevented an attempted suicide bomber by blowing up a vehicle filled with explosives.

According to relatives, the Sunday drone hit on the car parked outside their home killed ten members of one family, including six children. Some of the victims had worked for foreign organizations and had credentials to enter the US.