Mathias Pogba, the older brother of the France and Juventus star midfielder, Paul Pogba, is reportedly being temporarily detained and questioned over an extortion attempt.
Mathias, a Guinean professional footballer who most recently played as a forward for Championnat National 2 club Belfort, previously promised to reveal “explosive” information about his younger sibling.
There have also been allegations of blackmail and accusations of witchcraft.
An investigation into an alleged extortion attempt was opened in August and the latest development has seen Mathias detained by police.
Three other people were also reportedly detained at the same time as the former Manchester United man’s older sibling.
Temporary detention in France usually lasts for 24 hours.
Mathias Pogba, through his lawyer, has denied wrongdoing.
The saga is threatening to disrupt France’s World Cup preparations. Captain Hugo Lloris has already admitted to “negative” feelings around the squad in an interview with L’Equipe.
Pogba is currently injured and is a major doubt for the upcming World Cup.