Officials in Afghanistan say a suicide bomber has killed four Afghan employees of a U.S.-owned private security firm and wounded one other in southern Kandahar province.
Authorities said Sunday the bomber rode a motorbike next to a vehicle owned by the company, U.S. Protection and Investigations, and detonated his explosives. Three guards and the vehicle's driver were killed, and another guard was wounded.
On Saturday, a suicide bomber killed seven police officers and a civilian in eastern Afghanistan's Khost province, near the Pakistan border. The Taleban is reported to have taken responsibility for the blast.
NATO forces in Afghanistan are preparing for another upsurge in violence this year, having already launched an operation in the south to preempt an anticipated offensive by Taleban fighters.
Some information for this report provided by AP and AFP.