They've received, if you can imagine, additional ballistic missiles from North Korea. Ballistic missiles from North Korea, along with their other weapons, are being improved through collaboration with Russia." Ukraine's military intelligence agency (HUR) later told Reuters that a North Korean ballistic missile unit had set up positions in Russia's Voronezh Oblast, near the border with Ukraine's Luhansk Oblast. Russian forces have launched North Korean KN-23 and KN-24 short- and medium-range ballistic missiles during attacks against Ukraine. The first confirmed use of a North Korean missile by Russia came during an attack on Kharkiv on Jan. 2, 2024.