(CNN) -- Pakistani security officials say three NATO helicopters crossed from Afghanistan into Pakistan early Thursday and attacked a military outpost, killing three soldiers and wounding three others.
But a spokesman for the NATO-led force disputed that account.
Three Pakistani security officials said the helicopters attacked the Mandato Kandaho outpost, which is 5 kilometers inside Pakistani territory.
They did not want to be named because they are not authorized to talk to the media.
The area targeted lies in the Kurram Agency, officials said.
The killed Pakistani soldiers are members of the Frontier Corps, according to the officials.
CNN
