(Reuters) – Russia will pay its debts in roubles if America blocks any other options, Anton Siluanov, the Finance Minister said.

Washington could block Russia’s ability pay U.S. bondholders. Washington will allow a waiver on May 25 to run out, which would put Moscow in danger of default.

Moscow will make another Eurobond payment May 27.

Siluanov said that “we are not going call any defaults”, he added. He also stated that money was available if Western countries render it unaffordable to service their debts. We will be able and will pay foreigners with roubles if the Western (financial infrastructure) is shut for us.

Transactions with Russia’s central bank, financial ministry, or national wealth funds are banned by Western sanctions.

However, the U.S. waiver was issued on March 2, by the Treasury Department’s Office of Foreign Assets Control. It provided an exemption for “the receipt of maturity, interest, or dividend payments in connection to debt or equity.”

Moscow was able to continue paying its investors and avoid defaulting on its debt. This allowed U.S.-based investors to continue receiving coupon payments.

Russia still has almost $2 billion in external sovereign bond payments that it needs to pay before May 25th, when the waiver ends.