The third blast heard in the Afghan capital Kabul was due to US forces conducting controlled detonations to destroy their equipment, Taliban spokesman Zabihullah Mujahid said early Friday.
The Taliban official urged the public to remain calm.
A third large blast was heard in the Afghan capital Kabul on Thursday according to Reuters witnesses and AFP staff.
The Reuters witnesses were in an area some 3-4 kilometers from the airport.
Earlier on Thursday, two suicide bombers targeted the crowds massing near the Kabul airport, as thousands of Afghans flocked to the airport in an attempt to flee the Taliban takeover of Afghanistan.
ISIS claimed responsibility for the bombing near Kabul airport.