Three missiles fired by U.S. drone aircraft struck a site in Pakistan's North Waziristan region near the Afghan border on Monday, killing five, intelligence officials said.
The strike took place about 24 km (15 miles) east of Miranshah, the main town in North Waziristan.
"We have got confirmed reports of five dead but the number could be higher," said a Pakistani intelligence official in the region, who declined to be identified.
Another official said fighters had cordoned off the area.
It was the second attack by pilotless U.S. aircraft in the area in the past two days. Seven people were killed in a similar strike on Saturday.
Unofficially, analysts say Pakistan is cooperating with the United States in identifying at least some targets the drones attack.
PHOTO CAPTION
A US 'Predator' drone passing overhead at a forward operating base near Kandahar, Afghanistan, in January 2009.
Reuters