The incident has taken place on Wednesday midnight in Yatim Tapa area of Nawa Abad village in Chahab district of the province.
According to the provincial governor spokesman Sunatullah Tamori, the militants have killed 14 soldiers and six others are still missing.
He added that Taliban fighters had taken all checkpoint ammunition after the raid.
The official suggested that Taliban might have taken captive the missing policemen.
Source : Afghan Voice Agency(AVA)