War in Ukraine. Map of Ukraine. The horrors of war by region.

Sumy, about 350km (220 miles) east of Kyiv, has experienced weeks of heavy fighting.

Refugees gather in a street as they leave the besieged port city of Mariupol

Demonstrators, some displaying Ukrainian flags, chant 'go home' while walking towards retreating Russian military vehicles at a pro-Ukraine rally in Kherson.

A view shows a line of cars near blocks of flats destroyed during the Ukraine-Russia conflict as evacuees leave the besieged port city of Mariupol, Ukraine March 17, 2022.

Sandbag barricades are seen in Zaporizhzhia on March 17.

Firefighters work to extinguish flames at an apartment building in Kyiv on March 15. .

Masha Feshchenko, 15, rests in Zaporizhzhia's children's hospital after being severely wounded

A local resident rides a bicycle past a building destroyed during Ukraine-Russia conflict in the separatist-controlled town of Volnovakha in the Donetsk region, Ukraine.

Ukrainian servicemen carry rocket-propelled grenades and sniper rifles as they walk towards the city of Irpin, northwest of Kyiv, on March 13, 2022.

Kharkiv, Ukraine: 13 March, 2022 - Destroyed residential building, as a result of explosions and shots by the Russian occupying military in Kharkiv