Officers involved in the Manchester Airport attack could still face the sack over the incident, The Telegraph can reveal.

Pc Zachary Marsden and another officer are under investigation over the way Mohammed Fahir Amaaz was detained during his violent rampage in July last year.

On Wednesday the 20-year-old student from Rochdale was convicted of punching their Pc Lydia Ward in the face, causing a broken nose, and also assaulting PC Ellie Cook.

Amaaz was further convicted of headbutting Abdulkareem Hamzah Abbas Ismaeil, a passenger, during an altercation at the airport last July.

But the jury was unable to reach a verdict on whether he and his brother also assaulted Pc Marsden and both men will now face a retrial on that charge.

Despite the verdicts, however, Pc Marsden and another officer are still facing possible gross misconduct charges over the use of force and could be sacked if found guilty.

The Independent Office for Police Conduct (IOPC), which has been investigating the officers’ actions over the past year, is expected to announce its decision following the conclusion of the retrial.