Maulvi Faqir Mohammed was believed to be among some two dozen insurgents killed Friday at a sprawling compound in the northwest Mohmand tribal region, two intelligence officials said.
Interior Minister Rehman Malik said authorities had not identified the bodies of Mohammed or his fellow commander Qari Ziaur Rehman, but all the militants hiding at the site were killed after the helicopter gunships were dispatched on "real-time" intelligence.
"If Faqir Mohammed and Qari Ziaur Rehman are alive, then I will be surprised," he told Pakistan's Express news channel after receiving a briefing from the paramilitary Frontier Corps in the northwestern city of Peshawar.
The intelligence officials spoke on condition of anonymity because they were not authorized to speak to the media on the record. They said they were confident of their information, but warned that the remote, dangerous nature of the region made it nearly impossible to offer a definitive confirmation at this stage.
Pakistani Taliban spokesman could not immediately be reached for comment.
Mohammed was a deputy commander in the Tehrik-e-Taliban Pakistan - Pakistan's Taliban Movement
- leading the network's operations in the Bajur and Mohmand tribal regions. He also was close to al-Qaida No. 2 leader Ayman al-Zawahri, who along with Osama bin Laden is suspected of using Pakistan's tribal badlands as a hide-out.
The Pakistani Taliban have staged numerous attacks that have killed hundreds across Pakistan, and they are suspected to aid militants involved in attacks across the border in Afghanistan. The group is also a prime suspect in the suicide bombing that killed seven CIA employees in eastern Afghanistan in late December.
Bajur and to some extent Mohmand have come under fierce assault by Pakistani army and paramilitary forces. Just days ago, a top general declared for the second time in a year that Bajur was cleared of militants.
Last year, after then-Pakistani Taliban chief Baitullah Mehsud was reported killed in an August U.S. missile strike, Mohammed declared that he was taking over the group on a temporary basis.
There were suggestions, however, that the move rankled others in the Pakistani Taliban, making Mohammed's final status in the network somewhat murky after another militant, Hakimullah Mehsud, was selected as the heir to Baitullah.