Pakistan's Interior Minister, Chaudhry Nisar Ali Khan, says authorities will perform DNA tests on the body of a man who was killed in an American drone strike to determine whether the slain man is actually Taliban chief Mullah Mohammed Akhtar Mansour.

Khan said Tuesday that Pakistan is still unable to officially confirm Mansour's death, however Washington, Kabul and some senior Taliban commanders have confirmed it.

The Taliban has yet to formally announce his death.

Khan condemned the drone strike, calling it a violation of Pakistan's sovereignty.