"Russian assets have plummeted in the wake of the nation’s invasion of Ukraine, with the ruble’s slump making it the worst-performing emerging-market currency in February. Foreign-exchange market participants from Sydney to Hong Kong are freezing ruble trading as they mull the effects of the harshest sanctions placed on a major economy in a generation."
https://finance.yahoo.com/news/ruble-indicated-29-lower-offshore-024516048.html
https://finance.yahoo.com/news/ruble-indicated-29-lower-offshore-024516048.html