BOSTON (CBS) — A Boston Celtics fan has reportedly been banned from the TD Garden through the end of next season for directing a racial slur at Golden State Warriors center DeMarcus Cousins.

The fan in question reportedly called Cousins the N-word when the Warriors made their only visit to Boston on Jan. 26, according to Yahoo Sports’ Chris Haynes. There has been no official announcement from the Celtics, and it is unknown if the ban is from the team or the NBA.

“I was told by league sources that the incident occurred while the Warriors were in Boston. January 26, during that game there was a fan who muttered the N-word at DeMarcus Cousins. I was told DeMarcus informed one of the team’s security guys and got a hold of the security team there at TD Garden. They took care of the fan, but I was told, ultimately, that fan was banned for the rest of this season and next season. He received a two-year ban. That was never disclosed before,” Haynes reported Thursday night.

Yahoo Sources: A fan in Boston banned two years for muttering n***** at DeMarcus Cousins during Golden State’s only visit to TD Garden. More details in video link provided. https://t.co/xWpgFu0amH pic.twitter.com/JbtFOt3scZ — Chris Haynes (@ChrisBHaynes) March 29, 2019

“I was told the Warriors and DeMarcus were just informed of [the ban] recently. I think what the league wants to do moving forward is make sure they do a better job being informative and communicative with the players and the team,” added Haynes. “What’s going on with this new revaluation is showing that the league and teams out there are doing what they can to keep these types of slurs to a minimum.”

The news comes a few weeks after Oklahoma City Thunder star Russell Westbrook and a fan of the Utah Jazz got into a verbal altercation after the fan used racial insults toward Westbrook. The Jazz banned the fan for life, while the NBA fined Westbrook $25,000 for the incident.