Canadian Prime Minister Justin Trudeau invoked sweeping emergency powers on Monday to quell protests against vaccine mandates and other COVID-19 restrictions, including measures to choke off the flow of money to demonstrators.

Banks and financial institutions will be required to review their relationships with anyone involved in an illegal blockade and report them. They’ll have the authority to stop providing services to those suspected of using their accounts to help the protesters and to freeze accounts without getting a court order.

The government is also broadening its anti-money-laundering rules to cover crowdsourcing sites such as GoFundMe that have been used to funnel donations to them, as well as cryptocurrency platforms.