The prosecution office said Thursday that the players were arrested on Wednesday, bringing to six the number of people detained, following arrests late last month and early this month.

An official with the office in the southeastern city of Daegu said indictments were expected to be laid later this month.

A former player with the KEPCO45 team allegedly took bribes from a gambling broker in return for trying to rig the results of games in the 2009-2010 season, according to the prosecution office and team officials

Four other former and incumbent KEPCO45 players have also been arrested for their alleged involvement, they said.

A KEPCO45 official said his team “feels sorry” for fans and will cooperate in an investigation. He wished to remain anonymous citing department rules.

The detained broker placed bets on an illegal online gambling website after the results were arranged, the prosecution official said on condition of anonymity because an investigation was under way. The outcome of at least four volleyball games in the 2009-2010 season were rigged, he said.

Last year, South Korea’s football league was also hit by a massive match-fixing scandal, with nearly 80 players and brokers convicted.