Russia's foreign ministry said on Thursday it was "unavoidable" that Moscow would respond to new U.S. sanctions and that it had called in Washington's ambassador in Moscow for "tough talks".
U.S. President Joe Biden on Thursday authorised his government to sanction any sector of the Russian economy, including moves that may restrict Russia's ability to issue sovereign debt, to punish Moscow for interfering in the 2020 U.S. election - allegations Russia denies.
(Reporting by Andrey Ostroukh and Gabrielle Tétrault-Farber; Writing by Alexander Marrow; Editing by Hugh Lawson)
