The decapitated heads of the four fighters of the Islamic State terror group was placed on the side of a main road in eastern Afghanistan after they were beheaded by the local village militia members loyal to a powerful Afghan lawmaker.

According to Dawn, IS militants first captured four fighters from the militia, known as Pasoon or 'Uprising', and beheaded them. The militia then retaliated, by doing the same, Haji Zahir informed.

Dozens of members of the militia loyal to Haji Zahir, deputy Speaker of parliament, have been battling both Taliban and IS militants in Achin district of Nangarhar for weeks.

However, Ataullah Khoqani, spokesman for the provincial governor, said Afghan government forces were not involved in the incident as per the investigations.