Taliban militants have attacked a house in Faryab province north of Afghanistan and killed four civilians, local police said Monday.

"A group of armed Taliban targeted a house with rocket propelled grenade Sunday night, killing four people, a 14-year old girl, two women and a man," Mohammad Sadeq, deputy provincial police chief, told Xinhua.

Two other members of the family sustained injuries in the attack, said the official.

The reason for the attack, he added, was the refusal of the family to pay tax of farmland to militants.

Taliban fighters have so far made no comment.