Happening now, heavy shelling right now in eastern Ukraine as Russian forces make new

gains at this the close of a critical week in the war. To the south in Marriupol, the city's last the

city's last defenders are under, they're under relentless attack right now to be siege steel plant

where hundreds of civilians are also trapped, including babies.

We're following an urgent push to evacuate and strong fears of a new attempt by Russia to storm the complex.

Also tonight, we're learning more about the first known American

killed fighting in this war alongside the Ukrainians. How many other US fighters

are risking their lives in Ukraine right now.

Our correspondence are standing by on the ground in Ukraine with refugees in Poland and with

President Biden over at the White House.

We want to welcome our viewers here in the United States

and around the world. I'm Wolf Blitzer, you're in the situation room. Tonight Russia is making slow but alarming new progress in this the 10th week of its

brutal war against Ukraine officials Officials in Kyiv, Moscow and here in Washington,

they are now digging in for this bloody conflict potentially to last for years.

CNN's Anderson Cooper is standing by in the Ukrainian capital for us.

Caitlin Collins is over at the White House.

We'll go live to them in just moments.

But first, there's growing concern about the fate of the last holdouts in the besieged city of Marryupol,

as seen as Jim Schutto reports from the war zone.

Hundreds of civilians, including children, still trapped in a Maripole steel plant tonight

after Russia blocked Ukraine's latest attempt to rescue them.

The plant is the last Ukrainian military holdout in the embattled city and an

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