The Islamic State terrorist group has claimed responsibility for the attack at the Manchester Arena on Monday night that killed 22 people, the Akhbar Iraq portal reported.
The terrorists posted a video in social networks on Tuesday.
The blast occurred at the Manchester Arena in the northern English city at 10.35 p.m. local time on Monday shortly after a concert of US singer Ariana Grande. An explosive device went off outside the concert hall. The authorities are treating the incident as a terror attack.