At least 11 people have been reported dead after an explosive device detonated in the Farah province in Afghanistan, authorities say.
Chief of the province's health department, Abdul Jabar Shahiq, said the bombing in the Bala Buluk district also wounded 31 people, all civilians.
A bus carrying passengers, which included women and children, was struck by a roadside bomb early Tuesday, TRT World has reported.
Mohibullah Mohib, a police spokesman, said the incident occurred at about 4:30 a.m. on a highway between the city of Herat and Helmand province in southwestern Afghanistan.
The attack has not been claimed by any group.
According to the United Nations, more than 1,000 civilians have been killed by explosives in the first half of the year.