The Taliban attacked three checkpoints in the western Farah province of Afghanistan, killing at least six policemen, an Afghan official said on Sunday.

Mohammad Naser Mehri, a spokesman for the provincial governor, said eight other policemen were wounded in the late Saturday attack. He claimed eight insurgents were killed and at least five others were wounded in the battle.

The Taliban claimed responsibility for the attack.

Elsewhere in Afghanistan, seven militants were killed and two others wounded when a bomb exploded prematurely in the northern Kunduz province. Mahbobullah Sayedi, a district chief, said the fighters died while trying to plant the bomb on a road used by Afghan security forces.