INTERNATIONAL: In Mariupol, which has suffered some of the heaviest bombardment since Russia has aunched its invasion on February 24, many of its 400,000 residents remain trapped in the city with little if any food, water and power.

Some people who had underlying conditions and have suffered from stress of the recent weeks, have died as they could not receive medical help, Mariupol resident Andrei has said, he was digging a grave for his neighbours in the middle of a street on Sunday ,March 20.

"I hope there will be some sort of a reburial and this is just temporary," he has said.

Some parts of the city are controlled by the Russian forces and some remain under Ukrainian control, so the residents whose relatives are in another district know nothing about the fate of their close ones.

Natalya, a local kindergarten worker hassaid that her apartment was destroyed during the fighting and she does not know what to do next.

At least 902 civilians have been killed and 1,459 injured in Ukraine as of midnight local time on March 19, the U.N. human rights office (OHCHR) has confirmed on Sunday.

The actual toll is thought to be considerably higher since OHCHR, which has a large monitoring team in the country, has not yet been able to receive or verify casualty reports from several badly hit cities including Mariupol, it has said.