A Hibernian fan has been arrested for the alleged racial abuse of Heart of Midlothian ace Clevid Dikamona.
TV footage appear to catch a supporter aim an insult towards the defender as Hearts claimed a 1-0 win.
And it was confirmed a fan had been apprehended.
“A 65-year-old man has now been arrested following the racial abuse of a Hearts player,” said match commander Superintendent Jim Royan.
“There is no place in Scotland for hate crime and I want to reassure the public that reports of such incidents will be treated seriously.
“Fans have united in their condemnation of this behaviour and I want to thank the public for their assistance with our investigation so far.
“Over 20,000 fans were in attendance at Easter Road and I want to thank the vast majority, who were extremely supportive of officers and there to just support their team and enjoy the derby with friends or family.
“Despite this, and repeated warnings that anti-social and disruptive behaviour would not be tolerated, six arrests were made before and during the game.
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“Three people were arrested prior to the match in connection with alleged possession of pyrotechnics. Two people were also arrested before the game following the assault of two officers who were, thankfully, uninjured.
“Another person was arrested within the stadium in connection with possession of alcohol.”