The Afghan interim government is preparing to celebrate its victory day, marking the fall of U.S.-led military troops on August 15.
Mr Biden vowed that the U.S. will retaliate the killing of its military officers by a suicide bomber at the Kabul airport.
The incident came hours after intelligence reports warned of possible attacks near the airport in the beleaguered Afghan capital.
UK’s armed forces minister James Heappey said the terrorist attack could happen within hours.
The Taliban has urged people without legal travel documents who are desperate to flee the country to go home.
A Kazakh air force plane evacuated 42 people, including 16 foreigners, from Afghanistan.
At 1.45 million so far, mostly from South Sudan, Congo and Burundi, Uganda hosts the largest number of refugees in Africa.
Officially designed for 114 passengers, the Airbus A400M can carry up to 150 people. However, due to chaos at the airport, only seven managed to get on it.
The Taliban has declared amnesty across Afghanistan, urging women to join their government, AP has reported.
Five people were killed in chaos at Kabul airport on Monday as U.S. troops guarded the evacuation of embassy staff.
