Ukraine’s President Vlodomyr Zelensky says the next 24 hours will be crucial, in a call with the UK’s Prime Minister Boris Johnson.
Ukraine’s State Emergency Service says they are having a difficult time as Russia shelled the northern city of Chernihiv all night in almost all directions.
The assault involved rockets striking a building, housing a kindergarten, causing a fire.
A shop in a central market was also struck, as well as a five-storey residential apartment building leaving one woman slightly injured.
Ukraine’s Interior Ministry said on Sunday that at least 352 civilians have been killed since the Russian invasion of the country began on Thursday.
Additionally, the Russian rouble has plunged to a new low against the dollar in the wake of severe sanctions.
BP is set to offload its 19.75% stake in Russian state-owned oil firm Rosneft after Russia’s act of aggression in Ukraine.
The oil giant had come under pressure from the UK government to make the move since Thursday’s invasion.
It has held the shareholding in the Russian company since 2013.
Meanwhile, Norwegian energy giant Equinor says it will start the process of divesting from its joint ventures in Russia.
Following the assault, the UN is set to hold an emergency special session today involving all 193 member countries.