Australia’s premier online gambling licensing agency is pumping the brakes on its licensees accepting cryptocurrency-based wagers.

On Friday, online sports betting operators holding licenses issued by the Northern Territory Racing Commission (NTRC) received emails alerting them that the NTRC wasn’t down with operators accepting wagers in anything other than fiat currency.

As reported by the Australian Financial Review, the emails declared that the NTRC chairman “is intending to issue a formal communique to all sports bookmakers and betting exchange operators licensed in the NT if currently transacting in cryptocurrency (for example Bitcoin, Ethereum and the like) for their wagering operations to immediately cease and desist.”

The NTRC’s missive appears directly linked to last week’s reports that NTRC-licensed bookmaker Neds had launched Australia’s first Bitcoin-based betting platform. The site accepts deposits and pays out winnings in Bitcoin, but doesn’t allow customers to convert their Bitcoin balance to fiat currency.