UN plans third evacuation from Azovstal steelworks | First Thing

As a large-scale Russian propaganda campaign gets under way, fighting continues in the steel plant in Mariupol. Plus, Karine Jean-Pierre named new US press secretary

Good morning.

A third United Nations operation was under way this morning to evacuate Ukrainian civilians from the Russian-besieged Azovstal steel plant in Mariupol, which the UN secretary general has described as a series of hellscapes".

Why is Putin so determined to capture Mariupol over the next few days? As Victory Day, 9 May, approaches in Russia, Vladimir Putin has yet to win any prize in two months of war in Ukraine that can be shown off to the Russian people. But Mariupol could be close. Here's how Victory Day became central to Putin's idea of Russian identity.

What else is happening? Here's what we know on day 72 of the invasion.

What has Biden said about her appointment? Biden lauded Jean-Pierre's experience, talent and integrity". He said: Jill and I have known and respected Karine a long time and she will be a strong voice speaking for me and this administration."

When will Psaki leave? Her last day will be 13 May.