NYPD officers say charges against Conor McGregor are to be reviewed by the District Attorney in New York, after an incident involving a bus at a UFC media event.
He's being held at a police station after a video emerged claiming to show him throwing a trolley which shattered the window.
Fighter Michael Chiesa was treated in hospital for cuts to his face, while Rose Namajunas was said to be 'very shaken' by the incident.
McGregor and a number of friends had turned up at the Barclays Centre in Brooklyn, where a media day was taking place ahead of the UFC 223 event.
At the top of the card is the UFC Lightweight title fight between Khabib Nurmagomedov and current featherweight champion Max Holloway, after McGregor was stripped of his lightweight crown earlier this week.
