A local security official said a woman was killed and at least 16 people were injured following the blast which took place inside a shop in Pashtoon Kot district.
The official further added that women and children were among those injured following the blast and the health condition of a number of
This comes as earlier reports suggested at least one civilian was killed and nearly 30 others were injured following the explosion.
No group including the Taliban militants has so far claimed responsibility behind the incident.
Faryab is among the relatively volatile provinces in northern Afghanistan where anti-government armed militant groups are active in its various districts and frequently carry out insurgency activities.