Conor McGregor has apologised for his behaviour during the Bellator 187 event last weekend after he was barred from headlining UFC 219 due to his actions.
McGregor jumped into the cage to celebrate team-mate Charlie Ward's win over John Redmond but became involved in an altercation with referee Mark Goddard and another official.
The Association of Boxing Commissions and Combative Sports (ABCCS) subsequently punished the lightweight champion by pulling him from next month's UFC 219.
Conor McGregor issued an Instagram apology after being banned from the UFC 219 event
And McGregor has now taken to Instagram to apologise for his actions, saying he was concerned the referee was forcing the fight to continue despite Redmond lying unconscious on the floor.
'I sincerely apologise for my behavior at last weekends' fight event in Dublin,' McGregor said in a statement on Instagram.
'While trying to support a loyal team-mate and friend, I let my emotions get the best of me and acted out of line.
'As a multiple weight UFC champion, executive producer, role model and public figure, I must hold myself to a higher standard.
McGregor (centre right) lost his cool during the MMA event in Dublin on Friday night
'The referee Marc Gonard (Goddard) was making a horrendous decision in trying to pick an unconscious fighter up off the floor and force the fight to continue into the second round. Even against the wishes of the said fighter's coach. The fight was over.
'After witnessing my fighter in a fight where the worst happened and the opponent passed away from his injuries on the night, I thought the worst was about to happen again, and I lost it and over reacted. I am sorry to everyone'.
The Irish fighter was referring to was thought to be Joao Carvalho, who died after being knocked out by Ward back in April 2016.
McGregor, who had been a spectator in Dublin, leapt into the octagon to celebrate with Ward moments after he won with a first-round knockout to beat Redmond.
McGregor confronted referee Marc Goddard after Charlie Ward and John Redmond's fight
The Irishman had previous with referee Goddard and was seen pointing and shouting at him
Referee Goddard took