A roadside landmine exploded between the cities of Herat and Kandahar on Wednesday, and pictures showed a large bus overturned on the side of the road because of the explosion.
Farah State Department spokesman Muhayibullah Muhayeb said the mortalities were mostly women and children, stressing that the "Taliban" bomb exploded when the bus was passing by the highway.
The United Nations Mission in Afghanistan condemned on Tuesday the continued killing of civilians at an "unacceptable" pace, despite talks that are supposed to end decades of war in the country.
In a report, 1,366 people were killed and 2,446 wounded in the first six months of 2019, the report said, noting that it has fallen to 30 percent compared with the first six months of 2018. A third of the victims were children, 327 people and 880 wounded, because of the unexploded ammunition they play with without realizing their danger.