The US embassy in Kyiv has temporarily closed due to fears of a significant air attack. US citizens in Kyiv are advised to shelter in place. This warning comes amid heightened tensions, following Ukraine's use of US-supplied ATACMS to strike Russian territory. Russia has responded by lowering its nuclear strike threshold. Additionally, North Korea has reportedly supplied artillery systems to Russia, and Biden has authorized the provision of antipersonnel landmines to Ukraine. Teljes cikk (Euronews.com)