Here are the top 5 latest updates on this big story
At least 10 people were killed in a Russian military attack in the eastern Ukrainian town of Severodonestk on Tuesday, a local official for the Lugansk region said in a statement on Telegram. The Russian military "opened fire" on residential homes and other buildings in the town, he said, without immediately specifying whether it was an artillery attack.
Russia warned the West on Wednesday that it was working on a broad response to sanctions that would be swift and felt in the West's most sensitive areas. "Russia's reaction will be swift, thoughtful and sensitive for those it addresses," Dmitry Birichevsky, the director of the foreign ministry's department for economic cooperation, was quoted as saying by the RIA news agency.
Ukraine will on Wednesday try to evacuate civilians through six "humanitarian corridors", including from the besieged southern port city of Mariupol, Deputy Prime Minister Iryna Vereshchuk said. She said in a video statement that Ukrainian armed forces had agreed to stop firing in those areas from 9 a.m. until 9 p.m. (0700-1900 GMT) and urged Russian forces to fulfil their commitment to local ceasefires.
Britain unveiled on Wednesday new aviation sanctions giving it the power to detain any Russian aircraft and banning exports of aviation or space-related goods to Russia. Britain said it will also strengthen its ban on Russian aircraft, making it a criminal offence for any to fly or land in the United Kingdom.
The International Monetary Fund's executive board is poised to approve on Wednesday $1.4 billion in emergency funding for Ukraine to help it respond to Russia's invasion, IMF Managing Director Kristalina Georgieva said.
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