Insurgents kill 4 police in northern Afghanistan

An Afghan official says insurgents have killed four policemen in an ambush in northern Afghanistan.

Provincial government spokesman Muhbobullah Sayedi said Wednesday the attack took place in the Imam Sahib district of Kunduz province on Tuesday evening.

Northern Afghanistan has traditionally been considered safer than the volatile south but violence has risen around the country since NATO and Afghan soldiers began pushing into Taliban strongholds in southern Afghanistan in July.

In southern Afghanistan, NATO said a service member was killed by a bomb on Tuesday. The statement did not provide further details or give the service member's nationality.

The death brings the total number of NATO soldiers killed this year to 624.