The officials further added two other police officers were also injured following the blast.
Adraskan district security chief Sher Aqa Alokozai confirming the report said the incident took place early Saturday morning after a police vehicle struck with the roadside bomb at Mir Ali area.
No group including the Taliban militants has so far claimed responsibility behind the incident.
In the meantime Afghan interior ministry following a statement on Saturday announced more than 20 militants were killed following military operations by Afghan security forces.
The source further added Afghan security forces also detained more than 21 other militants during the operations which were conducted in Kabul, Kandahar, Zabul, Uruzgan, Logar, Ghazni, Khost, Paktika, Paktiya and Helmand provinces of Afghanistan.
Anti-government armed militant groups yet to comment regarding the reports.