A suicide bomber Monday attacked a joint patrol of NATO and Afghan forces in southern Afghanistan, killing a policeman, officials said.
The bomber rode a motorbike towards the patrol, opened fire and killed one policeman, the Helmand governor's office said in a statement, DPA reported.
The attack took place in Sangin district.
The bomber detonated his explosives-packed vest when he came close to the patrol, the statement said. There were no causalities among the foreign forces, it added.
The volatile southern province is a Taliban heartland where foreign forces have claimed fragile gains since the troop surge last year. The insurgents had declared their spring offensive would start on Sunday.