Commander Khawaz Chimtoo belonged to the Hafiz Gul Bahadur group.
Seven terrorists killed as army repulses attack on North Waziristan border post
Chimtoo is believed to have joined Da'ish, commonly known as IS, ISIS or ISIL, after Operation Zarb-e-Azb was carried out by the Pakistan Army in the area.
There are conflicting reports that the explosives had been planted by members of his own group.
However, it is also believed that an opposing faction had planned the attack.
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