The incident took place late on Wednesday evening near one of the entrance gates of Bagram airfield.

However, contrary to reports, the Afghan Ministry of Interior (MoI) spokesman Najib Danish said at least three people were wounded in the suicide attack.

The attack was claimed by the Taliban, who said that several US soldiers were killed in the attack, which they said was carried out to avenge the desecration of the holy verses of Islam printed on their flag.

Meanwhile, the US has apologised for distribution of highly offensive leaflets.

"The design of the leaflets mistakenly contained an image highly offensive to both Muslims and the religion of Islam," US military official Gen. James Linder said in a statement on Wednesday.

"I sincerely apologize. We have the deepest respect for Islam and our Muslim partners worldwide,” he added.

Linder said that an investigation would be initiated to determine the ''cause of this incident and to hold the responsible party accountable."

Image: Staff Sgt. Craig Seals/Wikipedia