The incident took place in Zarghoon Shahr village in Mohammad Agha district at around 10:15am on Friday morning when a civilian vehicle hit a roadside mine in the area, said Hasibullah Stanikzai, a member of Logar Provincial Council.
"All were members of one family", Mohammad Halim Fedayee, the provincial governor said, adding, "They were going to attend a wedding ceremony".
Those among the killed were five women and five children.
A roadside landmine claimed 11 lives of a family in southeastern Afghanistan on Friday, APA reports quoting Anadolu Agency.
The deadly bombing came just days after the U.N. Assistance Mission in Afghanistan (UNAMA) warned that the number of child deaths resulting from conflict-related incidents in the country have risen by 21 percent in the first four months of 2017.More news: UK's Conservatives to support shale energy, cap household energy tariffs
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Elsewhere in Afghanistan, another roadside bomb targeted a US militarily convoy in northern Parwan province on Friday, the global mission's media officer, Doug High, said.
Roadside bombs have been the Taliban's weapon of choice in their war against foreign and Afghan security forces.
In Nangarhar province, in a so-called green-on-blue insider attack, a policeman turned his rifle on his sleeping colleagues at an outpost during the night, killing five of them in the district of Ghanikhil.
There was also no claim of responsibility for the attack in Logar but Salleh, the spokesman, accused the Taliban of planting the roadside bomb. District Governor, Abdul Wahab Momand, said after the shooting, the attacker collected all the victims' firearms and fled the scene.