The Financial Conduct Authority (FCA) of the UK has declared all cryptocurrency ATMs in the country illegal and ordered their closure, BBC reports.

According to the FCA statement, no company in the UK has received a license to install cryptocurrency ATMs. The operation of all such devices should be stopped immediately, the regulator said, warning of possible measures otherwise.

Cryptocurrency ATMs look like regular ATMs in appearance and allow people to buy digital currencies using bank cards. There are currently 81 such ATMs operating in the UK.

The FCA warns Britons that the cryptocurrency market is unregulated, so there is a good chance that consumers will not be protected in any way if, for example, they lose money.

The regulator also published a list of companies that sell cryptocurrency but have not registered their business with the FCA or passed a money laundering check. Since then, 110 companies on the list have stopped selling.