A suicide attack on Tuesday outside International airport in Kabul killed at least three foreigners and their Afghan interpreter, said the police.
Police spokesman, Hashmatullah Stanikzai confirmed the incident and said in a statement that the incident took place early in the outside airport.
He said a suicide bomber riding a motorbike rammed his bike into a building that housed the foreigners.
According to local media reports, the foreigners were the advisers for the government but their nationalities were not disclosed. Taliban rebels claimed responsibility to the attack.