The NBA 2K League has indefinitely disqualified six players and a coach from any league activity for violating gambling and fantasy rules, it was announced Thursday.

An investigation found that Christopher Lafanette, Dorian Earl Miller and Robert Nastasi of Blazer5 Gaming, Kimanni Ingram of Jazz Gaming, and Zekirri Dennis of Mavs Gaming all wagered or attempted to wager on NBA 2K League games, either on their own or through other individuals, the league said in a statement.

The five players also broke league rules by failing to report any violations or cooperate with the investigation.

Blazer5 Gaming coach Andrew Maxie and player Marquis Gill were also disqualified indefinitely from all league activity for failing to report violations or cooperating with the league’s investigation.

“The integrity of our game is, and always will be, the NBA 2K League’s top priority,” league president Brendan Donohue said in a statement. “We take our obligation to the competition and to our fans incredibly seriously, and we will always act forcefully regarding violations of the rules governing game integrity and the related reporting and cooperation requirements.”