The Taliban has claimed responsibility for the bombing that left more than 20 people killed in western Kabul on Monday.
Tolo News, however, reported that the Taliban was targeting a bus carrying staff from an intelligence unit in the the vicinity of the 3rd police district of the city.
According to reports, the explosion occurred after a suicide attacker detonated a car bomb in Kabul's Gulaee Dawa Khana near the house of Mohammad Mohaqiq, the second deputy of Afghanistan Chief Executive Abdullah Abdullah.