Detail view of the logo and basketballs during NCAA Tournament West Regional Practice at Chase Center.

The NCAA is investigating sports betting violations involving 13 former men's basketball players across six schools, the organization announced on Thursday, Sept. 11.

The names of the players weren't released, but the NCAA said they involve former players from Arizona State, Eastern Michigan, Mississippi Valley, New Orleans, North Carolina AT&T and Temple. It is alleged the cases involve the former players betting on and against their own team, sharing information with third parties for the purpose of sports betting, manipulating scores or game outcomes and refusing to participate in the investigation.

The NCAA also said additional cases are in "various stages of the investigation process."

No players are currently enrolled at their previous schools, and names won't be publicly revealed until the infraction process is complete. The schools and staff aren't believed to be involved in the violations and no penalties are expected to be handed to the institutions.

The NCAA said it became aware of "unusual betting activities" through its monitoring program, with the investigation into the former players centering around regular season games. NCAA enforcement staff investigated the allegations through text messages, social media direct messages "and other material evidence" and discovered violations occurred.

"The NCAA monitors over 22,000 contests every year and will continue to aggressively pursue competition integrity risks such as these," NCAA President Charlie Baker said in a statement. "The rise of sports betting is creating more opportunity for athletes across sports to engage in this unacceptable behavior, and while legalized sports betting is here to stay, regulators and gaming companies can do more to reduce these integrity risks by eliminating prop bets and giving sports leagues a seat at the table when setting policies."

The news comes one day after the NCAA revealed three men's basketball players at Fresno State and San Jose State manipulated their performance for the purpose of sports betting, as they bet on their own games and provided information for others to do so. The players — San Jose State's Mykell Robinson and Steven Vasquez, as well as Fresno State's Jalen Weaver — were released from their teams and are permanently banned by the NCAA.

While it's unknown if the players part of the investigation have any eligibility left, NCAA athletes lose their eligibility permanently if they bet on their own games. Sports betting in any form is prohibited among college athletes, as well as any school, conference or national office staff.

There has been movement to allow players and athletics staff members to bet on professional sports events. The Division I Administrative Committee can consider changes in October, but changes cannot be made unless all three NCAA divisions agree.

This article originally appeared on USA TODAY: 13 former men's college basketball players investigated by NCAA for sports betting

Reporting by Jordan Mendoza, USA TODAY / USA TODAY

USA TODAY Network via Reuters Connect