Washington: US President Joe Biden on Sunday warning another attack was highly likely before the evacuations end, Suicide bomb threats hung over the final phase of the US military’s airlift operation from Kabul. More than 100 people died in the attack, including 13 US service personnel, slowing down the airlifts ahead of Biden’s deadline for evacuations to end by Tuesday.

The Pentagon said Saturday retaliation drone strikes had killed two “high-level” IS jihadists in eastern Afghanistan, but Biden warned of more attacks from the group. The situation on the ground continues to be extremely dangerous, and the threat of terrorist attacks on the airport remains high, Biden said.

More than 112,000 people have fled Afghanistan via the massive US-led airlift since the Taliban movement swept back into power a fortnight ago, and the operation is winding down despite Western powers saying thousands may be left behind. What had already been a chaotic and desperate evacuation turned bloody on Thursday when a suicide bomber from the local chapter of the Islamic State group targeted US troops stopping huge crowds of people from entering the airport.

Our commanders informed me that an attack is highly likely in the next 24-36 hours. The US embassy in Kabul later released an alert warning of credible threats at specific areas of the airport, including access gates. The IS attack has forced the US military and the Taliban into a form of cooperation to ensure security at the airport that was unthinkable a fortnight ago.

On Saturday Taliban fighters escorted a steady stream of Afghans from buses to the main passenger terminal, handing them over to US troops for evacuation. The troops were seen throughout the civilian side of the airport grounds and annexe buildings, while US Marines peered at them from the passenger terminal roof.

Western allies that helped with the airlift have mostly already ended their flights, with some voicing despair at not being able to evacuate everyone at risk. The head of Britain’s armed forces, General Sir Nick Carter, it was heartbreaking that we haven’t been able to bring everybody out.