Media reports say eight people were killed as an unauthorized US drone fired two missiles at targets in the Miranshah area of the North Waziristan.
The second attack targeted a car travelling through a small town in the same region, killing at least three people.
The death toll is expected to rise as some of the injured are said to be in critical condition.
The US has carried out numerous attacks on Pakistan’s tribal areas.
Pakistan’s parliament has called on Washington to stop its strikes. Islamabad has frequently criticized the attacks, calling them unilateral US action and a violation of Pakistan’s sovereignty.
The aerial raids, initiated by former US President George W. Bush, have been escalated under President Barack Obama.
Washington claims the strikes target militants. However, the attacks, conducted by CIA in coordination with the Pentagon, have reportedly killed hundreds of civilians in Pakistan since 2008.
The issue of civilian casualties has strained relations between Islamabad and Washington with the Pakistani government repeatedly objecting to the attacks.
Source: Press TV