A loud blast was heard in the Afghan capital Kabul on Sunday by AFP journalists, hours after US officials warned of the possibility of a terror attack.
A security official from the recently deposed government told AFP it was a rocket that "initial information shows hit a house".
Sources told News18 that the Islamic State's hand is suspected behind the attack. The source further said Americans remaining in the city amid evacuations were the target.
This comes just hours after President Joe Biden, vowing to keep up airstrikes against the Islamic extremist group whose suicide bombing at the Kabul airport killed scores of Afghans and 13 American service members, warned another attack was “highly likely” and the state department called the threat “specific” and “credible.”
The Pentagon said the remaining contingent of US forces at the airport, now numbering fewer than 4,000, had begun their final withdrawal ahead of Biden's deadline for ending the evacuation on Tuesday.
After getting briefed on a US drone mission in eastern Afghanistan that the Pentagon said killed two members of the Islamic State group's Afghanistan affiliate early Saturday, Biden said Saturday the extremists can expect more.
“This strike was not the last,” Biden said in a statement. “We will continue to hunt down any person involved in that heinous attack and make them pay.”
He paid tribute to the “bravery and selflessness” of the American troops executing the hurried airlift of tens of thousands from Kabul airport, including the 13 US service members who were killed in Thursday's suicide bombing at an airport gate.
The evacuation proceeded as tensions rose over the prospect of another Islamic State attack. The state department issued a new security alert early Sunday morning Kabul time instructing people to leave the airport area immediately “due to a specific, credible threat.”
With inputs from agencies