An explosion triggered by an improvised explosive device killed four Pakistani militants in South-eastern Paktiya province of Afghanistan.

According to a statement released by provincial government, an explosion went off among Pakistani militants in Andar area of Samkanai district on Sunday evening, killing four militants.

The statement further added that the militants were busy planting a roadside bomb in the area when the explosives went off prematurely.

Taliban militants and other militant groups often use improvised explosive device to target the security forces and government officials.

However, majority of such attacks inflict casualties on ordinary civilians.