Rangers have said they are “appalled” and expect an investigation after claiming opposition supporters mocked the Ibrox disaster at Pittodrie on Sunday.

Danny Röhl’s side made it five wins in a row to close the gap on Scottish Premiership leaders Hearts with a 2-0 victory over Aberdeen at the weekend.

In a tension-filled clash, the second match between the sides within a week, midfielder Nicolas Raskin appeared to get involved in a confrontation with a fan at full-time.

The Glasgow side has now released a statement slamming the “abhorrent behaviour” of the opposition support after footage shared on social media appears to show a group of men mocking the Ibrox disaster.

One appeared to make a diving gesture with his hands, while another, wearing a red mask, held out his phone with the number 71 on the screen, the year of the disaster.

The 1971 Ibrox disaster was a crush among the crowd on an exit stairway at an Old Firm football game that led to the deaths of 66 people.

Rangers have said that they expect those responsible to be “dealt with appropriately”.

A Rangers spokesperson said: “We are appalled that once again opposition supporters have mocked the Ibrox Disaster, the darkest day in our...