Zelensky says Mariupol terror 'will go down in history'

Volodymyr Zelensky has condemned Russia's incessant bombing of Mariupol

Ukrainian President Volodymyr Zelensky has condemned Russia's incessant bombing of Mariupol, the port city encircled by Russian troops in the south-east.

He said Russian forces in the city would "go down in history" as being responsible for "war crimes".

“To do this to a peaceful city, what the occupiers did, is a terror that will be remembered for centuries to come,” he said.

Russian strikes have hit civilian shelters, a children and maternity hospital, and several residential buildings. 

More than 2,400 people are said to have been killed; there are mass graves and bodies on the street.