The US military has been using drones armed with missiles in Afghanistan
At least four people have died in a suspected US missile attack on a Pakistani tribal region near the Afghan border, local officials say.
They say two unmanned US aircraft were spotted above the town of Miran Shah in North Waziristan before the strikes.
There has been no comment from the Pentagon on the reports.
The United States has launched several missile strikes against suspected militant targets in the border region with Afghanistan in recent weeks.
On Thursday, a suspected US missile strike killed at least eight people in another North Waziristan village.
The United States rarely confirms or denies such attacks.
American military commanders blame militants based in the tribal areas for the increase in attacks on coalition forces in Afghanistan.