A suspected US missile strike has killed four people near the Afghan border, according to Pakistan intelligence officials.
The officials said the missiles hit a car in Khushali village near Mir Ali in North Waziristan.
They said the identity of the four dead is not yet clear.
North Waziristan is home to several Afghan and Pakistani militant groups, as well as foreign al Qaida fighters.
Pakistan has said the strikes help militants attract new recruits and hit civilians and demanded that the US halt them.
In the past, there has been evidence suggesting Pakistan has given tacit approval to the strikes.
The US uses unmanned drones to hit militants in the absence of Pakistani moves against them.