Gen. Zahir Azimi, spokesman for the defense ministry of Afghanistan, said the incident took place in Farah province following an improvised explosive device (IED) explosion.
Gen. Azimi confirmed that 7 Afghan national soldiers were martyred following the explosion in Delaram area.
No group has so far claimed responsibility behind the incident.
Farah is among the relatively volatile province in western Afghanistan, where Taliban militants are openly operating in its various districts.
Taliban militants frequently use improvised explosive device (IED) as the weapon of their choice to target Afghan and coalition security forces.
The IED’s are also major contributor to civilian casualties in Afghanistan, the United Nations Assistance Mission in Afghanistan (UNAMA) said Saturday.
UNAMA in its report said that the anti-government armed militant groups were responsible for 34 percent of all civilian casualties which were caused due to improvised explosive device (IEDs).