The chief of Islamic State's (Isis) Pakistani wing, Hafiz Muhammad Saeed was killed on 16 April, when a bomb he was planting went off in the northwest tribal region of Kyber, reports said.
According to The Express Tribune, authorities in Pakistan's Tirah Valley said that the militants were planting or manufacturing an improvised explosive device (IED), when it went off killing three men.
Officials identified one of the militants as the IS commander for Pakistan, but there has been no confirmation from the Islamist group as yet.
Earlier in January, IS had anointed the former Taliban leader, who is also known as Hafiz Saeed Khan, as their new overload in southern Asia.
The 42-year-old was appointed the leader of a new group called IS Khorasan, an offshoot of Abu Bakhr al-Baghdadi's militant group which spans Pakistan, Afghanistan and Bangladesh, as well as some parts of Central Asia.
Saeed had originally belonged to the Aurakzai Agency and was among five leading Tehreek-e-Taliban Pakistan (TTP) commanders who announced their disassociation from the banned outfit. However, they swore allegiance to IS under the leadership of Shahidullah Shahid.
It is believed that Shahid (a former TTP spokesperson) is the real chief of IS in Pakistan and Saeed was simply serving as his dummy.
In a previous report, IBTimes UK had pieced together Saeed's life, shaped amid extremist violence and factional squabbles.