Ukraine rejects Russian ultimatum to surrender Mariupol

After several days of bombardment from Russian troops, Ukraine has rejected a Russian ultimatum for the surrender of Mariupol. Ukraine's Deputy Prime Minister said there can be no question of soldiers laying down their arms in the besieged city. The defence ministry in Moscow admitted that a terrible humanitarian catastrophe was unfolding in Mariupol, which has been largely destroyed by Russian bombs and shells.

The number of Ukrainians displaced by Russia's invasion has passed ten million, almost a quarter of the population.

And we'll hear from the Ukrainian MP and Mother who has picked up a rifle to defend her country.