France has ordered internet service providers to block access to Polymarket, citing concerns over illegal betting, potential market manipulation and significant losses for users.

The president of France’s National Gambling Authority issued the order on July 16, according to a statement published by the regulator on Friday.

The authority said Polymarket attracts a large audience in France while promoting gambling and betting services that are not authorized under French law.

A spokesperson for the regulator told Reuters that the website would remain blocked for as long as authorities considered the platform noncompliant with the country’s gambling regulations.

The authority also raised concerns about wagers tied to weather conditions, saying traders may have used insider information when placing certain bets. It warned that some markets offered through the platform could expose users to significant losses or manipulation.

Polymarket did not immediately respond to a request for comment.

The move adds France to a growing list of jurisdictions tightening their oversight of prediction markets. Spain temporarily blocked Polymarket and rival Kalshi in May, while the US Commodity Futures Trading Commission released proposed rules for the prediction market industry in June.

Polymarket and Kalshi allow users to trade contracts tied to outcomes across sports, elections, weather and geopolitical events. Lawmakers and regulators have increasingly questioned whether certain contracts serve a legitimate economic purpose or create risks to the public.

Polymarket’s annualized revenue has surpassed $1 billion, Reuters reported last month, citing a person familiar with the matter.