Officials say Taliban fighters killed up to 30 Afghans working for a road-building company in the south of the country.
There was no immediate explanation for the attack late on August 19 in the Sangin district of Helmand Province in which the road crew workers and security guards were killed.
Dawood Ahmadi, a spokesman for the Helmand governor, said 12 bodies had been taken to a hospital in the provincial capital, Lashkar Gah, along with some of the wounded.
The NATO-led International Security Assistance Force (ISAF), meanwhile, said three of its service members had been killed in two roadside bomb attacks in the south on August 19-20.
compiled from agency reports