Local government officials said the incident took place late Saturday in the vicinity of Lashkargah city.
Provincial governor spokesman, Omar Zwak, confirmed that 14 civilians and 2 policemen were injured after a suicide bomber detonated a vehicle-borne improvised explosive device (VBIED).
Zwak further added that the incident took place around 7:30 pm local time but he said the main target of the suicide bomber was not clear.
He said the suicide bomber was recognized by police and detonated the vBIED after policemen opened fire on him.
According to Zwak, two children were also among those injured following the suicide attack.
No group including the Taliban militants has so far claimed responsibility behind the incident.