BROOKLYN, N.Y. – UFC lightweight champion Conor McGregor has been charged with multiple counts of assault and one count of criminal mischief after a Thursday incident in which he allegedly was involved in a bus attack.

A New York Police Department spokesman today confirmed to MMAjunkie that McGregor has been formally charged after turning himself in late Thursday. He is in police custody and is expected to appear in front of a judge today.

In addition to the counts for McGregor, one of his SBG Ireland teammates, Cian Cowley, has been charged with one count of assault and one count of criminal mischief.

McGregor (21-3 MMA, 9-1 UFC) on Thursday showed up at Barclays Center in Brooklyn, N.Y., which will play host to UFC 223 on Saturday, and allegedly was let into the facility by credentialed media members that UFC President Dana White said were from TheMacLife.com – McGregor’s website. Once inside, McGregor, along with members of his team – including UFC 223 fighter and teammate Artem Lobov – reportedly managed to make their way to the loading dock.

Once there, chaos ensued when McGregor and his entourage can be seen on video going after a bus loaded with UFC 223 fighters, fighter teams and promotion personnel in pursuit of headliner Khabib Nurmagomedov (25-0 MMA, 9-0 UFC), who is scheduled to take on featherweight champion Max Holloway (19-3 MMA, 15-3 UFC) in the main event. The winner will become the new lightweight champion – meaning McGregor will be stripped of the title he won in November 2016, but has yet to defend.

McGregor can be seen on eyewitness videos attempting to throw a security barricade at the bus. After he was stopped, he picked up a wheeled dolly, video shows, and threw it at the bus window. It shattered the window, and the broken glass cut up the head and face of lightweight fighter Michael Chiesa and sent glass into the eyes of flyweight Ray Borg, UFC officials said.

In the aftermath, Chiesa (14-3 MMA, 7-3 UFC) was ruled out of his main-card fight against Anthony Pettis (20-7 MMA, 7-6 UFC) due to the cuts. Borg (11-3 MMA, 5-3 UFC), too, was removed from his fight against Brandon Moreno (14-4 MMA, 3-1 UFC) on the prelims. In addition, White already had removed Lobov (13-14-1 MMA, 2-4 UFC) from his featherweight fight against Alex Caceres (13-11 MMA, 8-9 UFC) for his alleged participation in the attack.

That means three fights in total were scrapped as a result of McGregor and his crew’s alleged attack on the bus, taking the event from 13 fights to 10 just two days before the show.

McGregor has interest in the UFC 223 main event, given the winner will have the lightweight title he currently holds. But Wednesday, Lobov had an altercation with Nurmagomedov, and that may be what set the incident into motion more than anything else.

White told reporters in Brooklyn the attack on the bus was “the most disgusting thing that has ever happened in the history of the company.” The UFC issued a statement late Thursday that said consequences will follow.

UFC 223 will take place Saturday at Barclays Center in Brooklyn, N.Y. The main card will air on pay-per-view following prelims on FS1 and UFC Fight Pass.

For more on UFC 223, check out the UFC Rumors section of the site.