Aberdeen say they are "aware and investigating" claims that Rangers captain James Tavernier was struck by a pie at Pittodrie on Wednesday.
However, Police Scotland said later that the English full-back was hit by "part of a bread roll" thrown from the stands while taking a throw-in.
Tavernier carried on playing after the incident and the police confirmed that no complaints had been made.
Aberdeen hit back from 2-0 down to earn a 2-2 Scottish Premiership draw.
In April, Motherwell banned a supporter "indefinitely" for throwing an object at Tavernier.
Items including a lighter, pie and coin all landed close to the Ibrox captain during Rangers' 3-0 victory at Fir Park.
https://www.bbc.com/sport/football/50676011