A second officer is under criminal investigation for assault after an incident at Manchester Airport, the police watchdog has said. Video which showed an officer kick and stamp on the head of Fahir Amaaz, 19, as he and his brother Muhammad Amaad, 25, were restrained by officers led to protests in Rochdale and Manchester city centre after it emerged last month. More footage, obtained by the Manchester Evening News, emerged days later which showed the immediate lead-up to the disturbance on July 23, when two female police officers were hit to the ground before Mr Amaaz was tasered.

In a press conference earlier this week, the family’s lawyer claimed the men’s mother, Shameem Akhtar, 56, was hit in the face with a Taser by an officer. In the days after the incident, the Independent Office for Police Conduct (IOPC) announced a Greater Manchester Police (GMP) constable was under criminal investigation for assault in connection with the arrests of the brothers. In an update on Thursday, the watchdog said a second officer had been advised they were also under criminal investigation for assault, relating to an incident shortly afterwards when two other men were arrested.

The officer is also being investigated for potential gross misconduct for alleged breaches of police professional standards including their use of force. An IOPC spokesman said it had received a further referral from GMP of a complaint, detailing several allegations, from one of the people involved. IOPC regional.