The device was detonated by remote control as a military vehicle passed through the Sararogha village area in the mountains of South Waziristan.
"At least 10 soldiers were wounded, three of them seriously," a security official told AFP.
A local intelligence official confirmed the bomb blast and casualties.
Pakistan carried out a sweeping offensive in 2009 in South Waziristan targeting the country's main Taliban faction, but many of their commanders and foot soldiers are believed to have fled to neighbouring North Waziristan.
Washington is pressing Islamabad to launch an all-out offensive in North Waziristan against the Al-Qaeda-linked Haqqani network, which is responsible for killing US troops in Afghanistan and to which Pakistani spies have close connections.
But relations between Islamabad and Washington plummeted after US commandos killed Osama bin Laden in Pakistan in May, and the military says it is too overstretched fighting Taliban elsewhere to open a new front in Waziristan.
COMMENTS (6)
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Army has to go to North Waziristan and finish off this menace once and for all.
This strategic depth of our army has cost us dear and might lead to the break up of Pakistan if these terrorists are not controlled
Very Sorry I was wrong. they are alive just wounded. My prayer was for every Shaheed.
"Ina Lila He Wa Inna Alai He Rajioon" These are Shaheeds and I Salute them All. Please recite Surah-e Fatiha 1 time and Qul ho Wallah 3 times.
Ever ask yourselves how many of the casualties associated with the War on Terror are the result of your sitting around and not taking the offensive?
Well Well, Where are those peoples who offered namaz-e janaza of OBL, and Baitullah Mehsood , cant they feel the greive of these familes. or cant they bothered to recite at-least surah-e Fatiha for the Martyred Soldiers. where are those who set sitting strikes in the favour of talibans, where would you stage the strike against such attacks???
God knows how many more deaths / sacrifices are required to achieve our strategic depth! Its time the army goes into north waziristan & finish off the militants.