Sky Sports claim Barton is wanted for allegedly assaulting Tykes boss Daniel Stendel.
Reports suggest Stendel and the former Manchester City player had to be separated after Fleetwood suffered a 4-2 defeat at Oakwell.
At the full time whistle, Stendel and Barton could be seen in an animated discussion, with reports sugesting Barton followed his opposite number towards the dressing rooms.
Meanwhile, Barnsley forward Cauley Woodrow took to Twitter to have his say on the ‘assault’.
Woodrow tweeted: “Firstly @ftfc to have a manager that can physically assault another manager in the tunnel is disgusting, causing our manager to have blood pouring from his face!!
“People like you don’t deserve a place in the game of football you are foul. Secondly fantastic win today @BarnsleyFC”.
It’s not the first time Barton has found himself at the centre of a controversy.
In January, the former Queens Park Rangers captain was charged by the FA over comments made about the referee of his Fleetwood side’s game with Bristol Rovers.
Barton was also fined £2,000 for accusing the match officials of bias, saying: “At times it definitely felt like we were against a lot more than 11.
“I have to be careful not to say anything because we all know the ramifications of telling people exactly what you think of officials.