French police on Tuesday arrested about 10 people, including player agents and figures linked to criminal gangs, as part of an inquiry into transfers by French high flyers Marseille, police sources said.
The suspect transfers date back to 2010 and the club management has since changed. But president Vincent Labrune as well as several former leaders were among people held for questioning in November as the inquiry gathered pace.
"Among the people detained are player agents and their associates but also people known to belong to the criminal underworld," one police source told AFP of the latest arrests.
About 15 people were briefly held for questioning in November.
Marseille are currently second in the French championship, one point behind leaders Lyon.