Troops have killed up to 40 militants about half of them foreigners during recent clashes in tribal area bordering Afghanistan, the military said on Tuesday.
Soldiers launched a major offensive in the rugged North Waziristan region on Thursday against insurgents with alleged links to Osama bin Laden's al Qaeda network.
It is part of a wider operation to clear tribal badlands of fighters who crossed from Afghanistan in late 2001.
"Our estimate is between 30 to 40 miscreants have died and out of these at least 15 to 20 are foreigners, mostly of Central Asian origin," chief military spokesman Major General Shaukat Sultan told AFP.
"No one has gone there and counted their bodies but intelligence intercepts indicate about 30 to 40 militants have died."
Last week local officials also said at least 30 insurgents had died in the crackdown near the village of Khatey Killay but military did not confirm the figure at the time.
Seven Pakistani soldiers were also killed in the recent offensive, during which military gunship helicopters pounded suspected rebel hideouts, Sultan added.
Women and children were temporarily ordered to leave the village during assault, while tribal leaders on Monday called on the government to stop attacks during the holy month of Ramazan.
In the most recent violence, local officials said on Tuesday a bomb wounded nine officials and soldiers at Khwaja Khar checkpost in North Waziristan.
The blast badly damaged two vehicles and the wounded men included an army major and a captain, an official said on condition of anonymity adding their injuries were not life threatening.