The US missile strikes on early Wednesday were carried out in North Waziristan, a restive Pakistani tribal area on the border to Afghanistan.
In Hamzoni village, US drones fired missiles on two vehicles, killing five people. A second attack left two dead. They had been travelling in a double cabin pick-up truck in Myzer Madhakhel village.
Officials say that all the dead were armed rebels.
Meanwhile, men armed with rockets and petrol bombs ambushed a security checkpoint at Speen Qabar, near the Khyber tribal district, killing five police officers.
Pakistani police blame the attack on Lashkar-e-Islam (Army of Islam), an Islamist group with ties to the Taliban that has long been causing trouble in Khyber.
The same group is said to have fixed a bomb under a tanker carrying fuel for Nato forces in Afghanistan, causing the vehicle to explode on Wednesday morning. There were no reports of casualties.
The majority of supplies destined for foreign troops across the border in Afghanistan is driven through Khyber.
The attacks happened as Indian officials accuse Pakistan’s government of making too little effort to close Islamist training camps in the country. India says 42 training camps are running in Pakistan.
India’s and Pakistan’s foreign secretaries met last month for the first official talks since the 2008 attacks on Mumbai, which India blames on Pakistani militants belonging to the Lashkar-e-Taiba group.
Pakistani Prime Minister Yousuf Raza Gilani rejects the accusations and claims to have made big gains against Taliban and Al-Qaeda strongholds over the past year.