The United States, Britain and France raised the issue of Iran's alleged transfer of drones to Russia at a meeting of the UN Security Council on Wednesday, US State Department spokesperson Ned Price said.
"We expressed our grave concerns about Russia’s acquisition of these UAVs from Iran," Price said in a statement. "We now have abundant evidence that these UAVs are being used to strike Ukrainian civilians and critical civilian infrastructure."
"We will not hesitate to use our sanctions and other appropriate tools on all involved in these transfers," Price said.