Khabib Nurmagomedov is restrained outside of the octagon after he defeated Conor McGregor at UFC 229 at T-Mobile Arena in Las Vegas on Saturday, Oct. 6, 2018. Chase Stevens Las Vegas Review-Journal @csstevensphoto
Khabib Nurmagomedov, right, takes down Conor McGregor during a lightweight title mixed martial arts bout at UFC 229 in Las Vegas, Saturday, Oct. 6, 2018. Nurmagomedov won the fight by submission during the fourth round to retain the title. (AP Photo/John Locher)
Conor McGregor, left, takes hits from Khabib Nurmagomedov during their lightweight title bout at UFC 229 at T-Mobile Arena in Las Vegas on Saturday, Oct. 6, 2018. Chase Stevens Las Vegas Review-Journal @csstevensphoto
Conor McGregor enters the arena before facing Khabib Nurmagomedov in their lightweight title bout at UFC 229 at T-Mobile Arena in Las Vegas on Saturday, Oct. 6, 2018. Chase Stevens Las Vegas Review-Journal @csstevensphoto
Las Vegas police and security hold back Khabib Nurmagomedov after he defeated Conor McGregor at UFC 229 at T-Mobile Arena in Las Vegas on Saturday, Oct. 6, 2018. Chase Stevens Las Vegas Review-Journal @csstevensphoto
Conor McGregor leaves the octagon after his loss to Khabib Nurmagomedov in their lightweight title bout at UFC 229 at T-Mobile Arena in Las Vegas on Saturday, Oct. 6, 2018. Chase Stevens Las Vegas Review-Journal @csstevensphoto
Khabib Nurmagomedov leaves the octagon after his win over Conor McGregor in their lightweight title bout at UFC 229 at T-Mobile Arena in Las Vegas on Saturday, Oct. 6, 2018. Chase Stevens Las Vegas Review-Journal @csstevensphoto
Tony Ferguson, left, fights Anthony Pettis during their lightweight bout at UFC 229 at T-Mobile Arena in Las Vegas on Saturday, Oct. 6, 2018. Chase Stevens Las Vegas Review-Journal @csstevensphoto
Las Vegas police and security try to stop fights that broke out after Khabib Nurmagomedov jumped out of the octagon following his win over Conor McGregor in their lightweight title bout at UFC 229 at T-Mobile Arena in Las Vegas on Saturday, Oct. 6, 2018. Chase Stevens Las Vegas Review-Journal @csstevensphoto
Conor McGregor leaves the octagon after his loss to Khabib Nurmagomedov in their lightweight title bout at UFC 229 at T-Mobile Arena in Las Vegas on Saturday, Oct. 6, 2018. Chase Stevens Las Vegas Review-Journal @csstevensphoto
Conor McGregor leaves the octagon after his loss to Khabib Nurmagomedov in their lightweight title bout at UFC 229 at T-Mobile Arena in Las Vegas on Saturday, Oct. 6, 2018. Chase Stevens Las Vegas Review-Journal @csstevensphoto
Conor McGregor leaves the octagon after his loss to Khabib Nurmagomedov in their lightweight title bout at UFC 229 at T-Mobile Arena in Las Vegas on Saturday, Oct. 6, 2018. Chase Stevens Las Vegas Review-Journal @csstevensphoto
Khabib Nurmagomedov points to a member of Conor McGregor’s team after he defeated the fighter in their lightweight title bout at UFC 229 at T-Mobile Arena in Las Vegas on Saturday, Oct. 6, 2018. Chase Stevens Las Vegas Review-Journal @csstevensphoto
Khabib Nurmagomedov jumps out of the octagon after he defeated the fighter in their lightweight title bout at UFC 229 at T-Mobile Arena in Las Vegas on Saturday, Oct. 6, 2018. Chase Stevens Las Vegas Review-Journal @csstevensphoto
Members of security chase after Khabib Nurmagomedov after he jumped out of the octagon following his win over Conor McGregor in their lightweight title bout at UFC 229 at T-Mobile Arena in Las Vegas on Saturday, Oct. 6, 2018. Chase Stevens Las Vegas Review-Journal @csstevensphoto
Conor McGregor reacts after his loss to Khabib Nurmagomedov in their lightweight title bout at UFC 229 at T-Mobile Arena in Las Vegas on Saturday, Oct. 6, 2018. Chase Stevens Las Vegas Review-Journal @csstevensphoto
Las Vegas police were called to the arena, 3780 Las Vegas Blvd. South, about 10:20 p.m. Saturday for “unknown trouble” and about 10:50 p.m. for an “assault/battery,” according to police event logs.
“As of now there were no arrests related to the incident at the fight tonight,” Metro Lt. Jason Johansson said just before 8 a.m. Sunday.
Johansson did not know whether anyone was seriously injured. He did not provide further details Sunday morning.
