The ambush has also left at least five others wounded, while two soldiers were taken hostage, a local council member said on Friday.
The militants also set fire to at least 20 armored vehicles, according to the officials, Qatar-Tribune reported.
A video released Saturday by Ariana news shows the burned vehicles left on a road to Sherin Tagab
Faryab is among the relatively provinces in North of Afghanistan where Taliban are actively operating in some of its districts and often attempt to attack government and security institutions and forces.