Provincial governor spokesman Sarhadi Zwak confirming the report said the incident took place after an Afghan national army vehicle struck with a roadside bomb at Todi-Cheni district.
Taliban militants group claimed responsibility behind the incident.
In the meantime Afghan defense ministry following a statement on Thursday announced at least 14 militants were killed following military operations by Afghan national army.
The source further added Afghan national army soldiers are also detained four militants and defused at least 16 improvised explosive device during the operations.
The operations were conducted in Mizan and Qalat city of eastern Zabul province of Afghanistan.
Anti-government armed militant groups yet to comment regarding the reports.