PC Simon Harwood, who was cleared of killing Ian Tomlinson, will be sacked after being found guilty of gross misconduct by a disciplinary panel.
More top news
So-called Islamic State said they were behind the attack that targeted people receiving their national identification cards.
Local police said authorities are searching for 29-year-old Travis Reinking after a shooting at a Waffle House restaurant in Nashville.
Faisal Mekdad, the deputy foreign minister, told ITV News Britain was 'absolutely' involved in faking an attack in Douma.