"We cleared al-Shaddadi and the surrounding areas from Daesh militants, but so far we have seen no evidence of his [al-Shishani’s] death and we have no proof that he was present here at all," Mansour told RIA Novosti.
According to Mansour, the media has exaggerated the real role and weight of Al-Shishani in the terrorist organization.
Al-Shishani, known as Omar "the Chechen," has been serving as an Daesh commander in Syria. Daesh is outlawed in many countries, including Russia and the United States.
The US-led coalition of over 60 nations has been carrying out airstrikes against the Daesh, first in Iraq and later Syria since 2014 — albeit without the approval of the Syrian government or the UN Security Council.