Police are investigating after Dundee United manager Jim Goodwin said he was hit by a coin during a game against his former club Aberdeen.
Goodwin claimed other projectiles including a pie and a cup of juice were also thrown at him at Tannadice on Saturday.
Police said they are reviewing CCTV footage and engaging with the clubs to establish the circumstances.
The Irishman, who was sacked by Aberdeen on January 28 after a string of poor results, was named Dundee United manager on Wednesday.
His first game in charge was against his former club, who won the cinch Premiership contest 3-1.
Speaking after the match Goodwin said: “I obviously wasn’t expecting a warm reception from the Aberdeen fans. But I was disappointed that there were coins and other projectiles getting chucked down on top of me.
“There was a pie, a cup of juice, a couple of coins, and unfortunately one of them landed on the top of my head.
“Thankfully it was nothing serious but not what you want when you go to your work.
“I have to say that it is definitely just a minority. There are always a few bad eggs who tarnish the rest of the club.
“Aberdeen is a terrific club and one of the best supported in the country – 2,500-3,000 of them down the road supporting their team, but a few mindless idiots have us talking about stuff we don’t want to be talking about.
“It was disappointing but I am not going to go over the top with it and I am sure it will be dealt with.”
A Police Scotland spokesman said: “Officers are aware of media reporting around objects being thrown on to the pitch at Tannadice Park, during a match on the evening of Saturday 4 March 2023.
“Whilst no reports have been made to Police Scotland, we are engaging with the clubs involved to establish the circumstances.
“Inquiries are ongoing which will include a review of CCTV footage.”