President Donald Trump said he was “very angry” at Vladimir Putin and threatened “secondary tariffs” on buyers of his country’s oil if the Russian leader refuses a ceasefire with Ukraine.

U.S. President Donald Trump said on Sunday he was "pissed off" at Russian President Vladimir Putin and will impose secondary tariffs of 25% to 50% on buyers of Russian oil if he feels Moscow is blocking his efforts to end the war in Ukraine.

The Kremlin said on Monday, after U.S. President Donald Trump said he was pissed off with Vladimir Putin, that the United States and Russia were working on ideas around a possible peace settlement in Ukraine and on building bilateral ties.

Putin called for “interim governance” in Ukraine under the auspices of the United Nations, which would essentially push out Ukrainian President Volodymyr Zelensky.

Russia is one of the world’s three largest oil producers, meaning any attempt to punish purchases of Russian supplies could have a far-reaching effect on the oil market.

They pushed him to hold elections in the middle of the war, believing no doubt that Ukrainian voters would do them the favour of unseating him. Two months ago Mr Zelensky was believed to be dead set against holding a vote.

HELSINKI (Reuters) - Finland's President Alexander Stubb said on Sunday he had told U.S. President Donald Trump that a deadline needs to be set for establishing a Ukraine ceasefire in order to make it happen.

U.S. President Donald Trump said on Sunday he was "pissed off" at Russian President Vladimir Putin and will impose secondary tariffs of 25% to 50% on buyers of Russian oil if he feels Moscow is blocking his efforts to end the war in Ukraine.