By Shadi Khan Saif

KABUL, Afghanistan

At least 11 civilians, including women and children were killed in a roadside blast in western Farah province bordering Iran, an official said on Tuesday.

Farah governor's spokesman Naseer Mehri told Anadolu Agency a passenger bus struck a roadside improvised explosive device, reportedly planted by the Taliban, in the Bala Bulook area of the province.

''The bus was on its way from Herat province to capital Kabul; 11 passengers embraced martyrdom and more than 30 are wounded," Mehri said.

The Taliban so far have not claimed the attack.

Farah city briefly fell to Taliban fighters in May this year. Local officials often blame Iran for backing the armed group in this part of the country, a charge repeatedly rejected by Tehran and the Taliban.

Separately, the directorate of refugee affairs came under an armed assault in eastern Nangarhar province, which had been marred by pro-Daesh insurgency. There were no immediate report of casualties or responsibility.