The US president says he is "disappointed" in Putin and will be sending "top-of-the-line" weapons to Ukraine, via Nato.

Russia launched four missiles and 136 drones into Ukraine overnight into Monday morning, according to Ukraine's air force, after President Donald Trump said the U.S. would provide Kyiv with more Patriot surface-to-air systems to help defend against Russia's nightly bombardments.

Trump said the United States would put 100% secondary tariffs on countries that do business with Russia if a deal if a peace deal is not reached in 50 days.