The NBA and Denver police are investigating an incident in which one of Nikola Jokic's brothers was seen a punching a fan after the Denver Nuggets defeated the Los Angeles Lakers in Game 2.

In videos shared by TMZ and other outlets, the man is seen climbing over seats to confront another person at Ball Arena, who he then punches in the face.

The Denver police media relations unit said in an email sent to The Associated Press that it is investigating the incident, but said it was not reported to the Denver police at the arena or after the game.

"At this time, no one has come forward as a victim of this incident," the email said. "The Department is looking into this incident, is actively working to identify the person in the video who was struck, and encourages anyone who was involved or witnessed this firsthand to contact the Denver Police Department."