Trump threatens sanctions on countries that buy Russian oil, and arms Ukraine

The weapons would include Patriot air defence missiles Ukraine has urgently sought, he said.

"It's a full complement with the batteries," Trump said. "We're going to have some come very soon, within days."

"We have one country that has 17 Patriots getting ready to be shipped...we're going to work a deal where the 17 will go or a big portion of the 17 will go to the war site."

Rutte said Germany, Finland, Denmark, Sweden, Norway, the United Kingdom, the Netherlands and Canada all wanted to be a part of rearming Ukraine.

Trump's threat to impose so-called secondary sanctions on Russia, if carried out, would be a major shift in Western sanctions policy. Lawmakers from both US political parties are pushing for a bill that would authorise such measures, targeting other countries that buy Russian oil.