Ukraine war in maps: Tracking the Russian invasion

By The Visual Journalism Team

Heavy fighting continues in east Ukraine, with key locations under intense bombardment from Russian forces.

Here are the latest developments:

• Russian forces control residential areas of the eastern city of Severodonetsk
• Russian troops are continuing to attack Ukrainian positions north of Kharkiv city
• In the south, Mariupol is said to be at risk of a major cholera outbreak

Eastern cities under heavy bombardment

Russian officials have said their forces are fighting for the "complete liberation" of the Donbas, which broadly refers to Ukraine's eastern regions of Donetsk and Luhansk, where Russian-backed separatists held significant territory before the invasion.

Russia has made slow but significant advances in the east, and now controls over 90% of the Luhansk region.

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