Hibs have urged supporters to come forward with information after it was found that a remark used towards one of their own players was racial.
At the time, in October, Marvin Bartley claimed a slur had been aimed at Hibs midfielder Jair Tavares during the Premiership clash at Tannadice.
Both clubs looked into the incident, as they "unequivocally accepted the shout came from the stand housing the away fans."
