Afghan officials say a suicide blast early Monday in Kabul killed two intelligence officers and four civilians, while injuring two people.
The bombing occurred near a security check post on a busy road in the capital. The bomber apparently wanted to target Afghan security forces and instead hit a civilian car, said an Interior Ministry spokesman.
The Islamic State group claimed responsibility for the blast through its Amaq news agency.
Monday's bombing comes a week after Islamic State claimed an attack on a National Directorate of Security training facility in Kabul.