The US said on Thursday that Moscow has used missiles from North Korea to attack Ukraine and is trying to buy more from Iran.
Citing recently declassified intelligence, the White House said North Korean ballistic missiles had been fired by Russia into Ukraine on 30 December.
US National Security Council spokesman John Kirby said overall Pyongyang has provided Russia with ballistic missile launchers and several ballistic missiles.
Though it has not been completed, Kirby said the US was “concerned” that Moscow was trying to negotiate a deal to purchase missiles from Iran.
He said negotiations were “actively advancing.”
With Russia ramping up its missile and drone attacks during the winter, Ukraine has pleaded with its Western allies to keep supplying it with air defence weapons.
NATO and Ukrainian ambassadors are set to hold talks at Kyiv’s request in Brussels on 10 January and are expected to discuss the country’s needs, an alliance official said.
“NATO allies have already delivered a vast array of air defense systems to Ukraine and they are committed to further bolstering Ukraine’s defenses,” said NATO spokesman Dylan White.