The Pentagon review determined that stocks were too low on some items previously pledged, so pending shipments of some items won’t be sent, according to a U.S. official, who spoke on condition of anonymity to provide information that has not yet been made public.

The Pentagon halted arms shipments to Ukraine, including Patriot missiles, after Trump’s top defense official warned U.S. stockpiles had dropped to critical levels.

Ukrainian President Volodymyr Zelensky met US President Donald Trump at last month's Nato summit The US has halted some weapons shipments to Kyiv, the White House has said, as Russia's war against Ukraine has intensified.