A set of bets that correctly predicted the exact top five of this year's Ballon d'Or is under investigation by the award's organizer, France Football, The Guardian reports. The French police are also to be informed, the outlet says.

Twelve accounts on Polymarket, a cryptocurrency-based prediction market, wagered more than $264,000 on the outcome before Monday's ceremony, The Guardian and Le Figaro report. The accounts were created between October 1 and October 20.

The accounts bet that Harry Kane would win, followed by Kylian Mbappé, Lamine Yamal, Rodri and Lionel Messi, the outlets report. That was the exact order announced at the ceremony at the London Palladium. One account bought a contract on a Kane win at 37 cents and sold it at 67 cents, The Guardian reports.

French media outlet Upside first reported the bets, the outlets say. Its co-founder, Raphaël Pautard, said the accounts showed strikingly similar patterns, according to The Guardian. Seven had never bet on any other market, and six placed their first bets 15 minutes after being created. His team traced one transaction to a French platform.

Before the ceremony, France Football said only a handful of people knew the winner in advance, The Guardian reports. Polymarket is banned in France, Le Figaro notes. Nothing yet proves that inside information was used, the French paper says.

France Football has been contacted for comment, according to The Guardian.

What we know: Twelve accounts bet on the exact top five, and France Football has opened an investigation.
What we don't: Who controls the accounts and whether anyone had inside knowledge.