Illinois State is investigating after allegations that at least one Red Birds fan directed a racial slur toward a Norfolk State player in a game Saturday.

The university said in a statement Sunday that it was investigating claims that one or more of its fans had used a slur directed at a Norfolk State player during Norfolk State’s 64-58 win over the Red Birds on Saturday. It’s unclear what was said specifically during the game, but fans were ejected from CEFCU Arena and both coaches received a technical foul during the incident.

With about eight minutes left in the game Saturday, an altercation broke out after the alleged verbal attack — in which the broadcast said “one or two” fans made comments of a “racial nature” toward Norfolk State’s Jamarii Thomas. At one point, Norfolk State head coach Robert Jones started walking out onto the court toward fans sitting courtside, but was stopped by his players.