Saeed, along with two of his accomplices, was killed on Thursday when the bomb they were planting exploded in Toor Dara area of Tirah Valley in the Khyber tribal region.
The security forces claimed one of the men killed in bombing was the Pakistan chief of Islamic State of Iraq and the Levant (ISIS), the report said.
However, there was no confirmation from the ISIS militant group.
Saeed hailed from the Aurakzai Agency and was among five leading Tehreek-e-Taliban Pakistan (TTP) commanders who announced their disassociation from the banned outfit last October.
The group had joined the ISIS under the leadership of Shahidullah Shahid, a former spokesman of the TTP.
The ISIS high-command through a message last year had declared Saeed as the ISIS chief for Pakistan.