President Donald Trump on Wednesday threatened to impose “high levels” of sanctions on Russia and tariffs on imports from there if the country did not reach a settlement to end its nearly three-year-old war against Ukraine.

Trump’s warning, made in a social media post on his third day as president, called out Russian President Vladimir Putin by name.

“If we don’t make a ‘deal,’ and soon, I have no other choice but to put high levels of Taxes, Tariffs, and Sanctions on anything being sold by Russia to the United States, and various other participating countries,” Trump wrote on Truth Social.