Eight workers on an American military base were killed on Thursday on the outskirts of Pul-i-Alam, the capital of central Logar province, an official said.
The incident took place in the morning when the workers were on their way to the base, the provincial police chief said.
Raees Khan Sadiq said the insurgents stopped in the Khadar bazaar the car the men were travelling in and shot them to death.
But a Taliban’s spokesman, Zabihullah Mujahid, said he was aware of the attack and that the fighters did not target civilians.
Abdul Jalil, the father of one of the victims, said his son had been working for two years at the Shang camp of American troops.
Jalil added his son was an ordinary labourer, a breadwinner for a 12-member family. All victims were residents of Gulnar area.
He blamed security forces and police for their failure to prevent such attacks in the increasing volatile province.
Shang camp, where many Afghans have found work opportunities, is located three kilometers south of Pul-i-Alam on the Kabul-Gardez highway.