Islamabad, Pakistan (CNN) -- A suspected U.S. drone attack killed 10 people in northwest Pakistan on Thursday morning, but missed the leader of the Taliban in the country, officials said.
Four missiles struck near a madrassa, or religious school, in South Waziristan, Pakistani intelligence and local officials said.
The school had been converted into a training camp for militants, the officials said.
All those killed in the attack were militants, but not members of the Taliban, the officials said.
The U.S. military routinely offers no comment on reported attacks by drones, or unmanned aircraft. But the United States is the only country operating in the region known to have the ability to launch missiles from remote-controlled aircraft.
The leader of the Taliban in Pakistan, Hakimullah Mehsud, had just left the area before the missiles struck, said Azam Tariq, spokesman for the group.
No Taliban fighters were at the strike location, Tariq said.
Journalists Nasir Dawar and Nazar Ul-Islam contributed to this report.