Sources have said that a bomb exploded on Thursday afternoon in the northern gate of Hamid Karzai International Airport based in Kabul and has inflicted casualties.
As per the sources, tens of bodies were scattered on the roads after explosions.
sporadic gunshots were also heard for a while in the scene.
Pentagon spokesperson John Kirby has also confirmed the incident and added that there is still no information about the casualties.
The US had warned people against the terror an attack on airport and had asked them not to come through, there was a large number of people at the gate.