Summary
Russia gives a new deadline of 1100 GMT (Wednesday) to Ukrainian troops in Mariupol to surrender
Ukrainian officials say their troops will continue to defend the port city
President Volodymyr Zelensky says "the situation in Mariupol remains as severe as possible"
Ukraine reaches a preliminary agreement with Russia for a humanitarian corridor to evacuate civilians there
Meanwhile, Ukrainian forces have repelled numerous advances by Russian forces in the Donbas, says the UK Ministry of Defence
Russia is trying to capture the eastern region after being frustrated elsewhere in Ukraine
The Biden administration is reportedly planning to announce another $800m (£615m) military aid package for Ukraine
Source: BBC
BDST: 1310 HRS, APR 20, 2022
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