Blasts hit two buses in western Kabul yesterday, killing at least seven people, according to police. 

The explosions took place in a neighbourhood dominated by the minority Hazara community where similar attacks on buses earlier this month killed 12 civilians.

Basir Mujahid, Kabul's police spokesman, added that six people had also been wounded in the blasts.

Violence has been rising as foreign forces withdraw from the country by Sept. 11 and efforts to broker a peace settlement between the Afghan government and insurgent Taliban have slowed.

It was not immediately clear who was behind yesterday's attacks. But both the Islamic State group and the Taliban militants have targetted the monority group before.