RANGERS players appeared to alert referee David Dickinson to objects allegedly thrown onto the pitch in the win over Motherwell.
Giovanni van Bronckhorst's men claimed all three points with a 2-1 win over Stevie Hammell's Motherwell side.
But despite the result, players were visibly annoyed at full-time after missiles were allegedly thrown during the match.
Pictures shared by The Scottish Sun show Antonio Colak alerting whistler Dickinson to objects on the pitch after celebrating John Lundstram's goal.
The striker appears to be holding two objects towards the referee who was then seen handing an object over to fourth official Alan Muir on the sideline.
Sky Sports commentator Ian Crocker said: "It sadly looks like something has been thrown on to the pitch."
Furious Borna Barisic also looked to be pointing to a section of the Motherwell support after the alleged incident.
And at full-time, Barisic was led off the pitch by his team-mates as he appeared visibly annoyed as he looked to the section of the ground where the alleged incident occurred.
