The conflict in Ukraine remains at its most horrific in the southern port city of Mariupol.
Russia issued an ultimatum overnight demanding the city's surrender in return for the safe evacuation of more than three-hundred thousand residents.
The deal was rejected by the Ukraine government, despite the danger to those still forced to shelter in appalling conditions after weeks of incessant bombardment.
Ukrainian officials say Russian shells have also hit a chemical factory near the besieged northeastern city of Sumy, causing an ammonia leak.
They say an area of several square kilometres has been affected by the toxic gas.
In Brussel's European Union foreign affairs chief Josep Borrell has accused Russia of committing a massive war crime in what he said is an indiscriminate assault on Mariupol.
Roman Skliarov, a resident of Mariupol, who managed to get out of the city on the first day of the Russian invasion, spoke to Corin Dann.
