Militants have used rockets and a bomb to attack the family home of a lawmaker in Pakistan's volatile northwest, killing eight people, including the politician's brother.

The militants early on Monday targeted the Swat Valley residence of provincial lawmaker Waqar Ahmed Khan of the ruling Awami National Party.

Khan confirmed that his brother, two nephews and several guards died in the attack on the compound, belonging to him and his extended family.

Police officer Saifur Rehman said several rockets were used and the militants set on fire the bungalow at the Khan family's sprawling residence in the valley's Shah Dheri area before leaving. He said eight people were killed.