The provincial government in a statement said the militants were busy making a bomb when the explosion took place, leaving at least four militants dead.
The statement further added that the incident took place in Andar district of Ghazni.
The Taliban group has not commented regarding the incident so far.
The anti-government armed militants including Taliban militants frequently use improvised explosive devices to target the security forces and government personnel.
However, majority of such attacks inflict casualties or ordinary civilians while such attacks often kill or injure the militants, specifically when the explosives go off prematurely.
Source : Afghan Voice Agency(AVA)