FOLLOW THE STORY HERE: https://www.news.com.au/world/europe/russia-will-immediately-escalate-attacks-on-ukraine-in-response-to-moskva-explosion-expert-warns/news-story/f27ff792819891f9f81038b9692b5bc7
An air raid alert has been declared for all of Ukraine’s regions, following warnings Vladimir Putin could launch an “immediate escalation” of the war.