Two suspected US drone strikes killed at least seven people in Pakistan's tribal region near the Afghan border on Wednesday, intelligence officials said.
The aerial strikes took place in North Waziristan tribal district, a known base for Taliban and al-Qaeda militants launching cross-border attacks on US-led NATO forces in Afghanistan, DPA reported.
An intelligence official said that a drone - or remote-controlled unmanned aircraft - fired five missiles at two vehicles near Miranshah, the main town of North Waziristan, killing five people and injuring three more.
Around 45 minutes later, three missiles struck another vehicle in the Mayz Madha Khel area of the district. Two people died, the intelligence official said.
"Their charred bodies are still lying in the vehicle and no one dares to recover them since the drones continue to hover overhead," added the official.
The identity of those killed and injured was not immediately known, said a second intelligence official who also confirmed the death toll.
Both security officials spoke on condition of anonymity.
It was the third drone attack in North Waziristan in two days.
Eleven militants were killed Tuesday when US airstrikes targeted Taliban and al-Qaeda training centres in the mountainous district.
US authorities have intensified drone strikes in the North Waziristan district since December when a Jordanian double agent killed seven CIA employees in Afghanistan in a suicide bombing.
Dozens of top al-Qaeda operatives and Pakistani Taliban leaders have been killed in the US drone attacks in North Waziristan and neighbouring districts.
The Pakistani government routinely protests the US strikes, saying they violate its sovereignty and complicate its efforts against terrorism by fuelling anti-Americanism.