The Situation Room with Wolf Blitzer and Pamela Brown

A key Russian warship has sunk off the Ukrainian coast. Ukraine claims it conducted a missile strike on the vessel while Russia claims the damage was the result of a fire. The Pentagon cannot confirm if the damage was a result of a Ukrainian attack. Also, U.S. officials warn that Russia has amassed significant forces in eastern Ukraine, potentially signaling a brutal new offensive. CNN is inside towns on the brink of assault where civilians are taking shelter.To learn more about how CNN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices

Police have arrested the suspect in the New York City subway shooting after Frank James called in a tip against himself. He is now charged with terrorism against a mass transit system.  Also, amid mounting evidence that Russian forces are ramping up their assault on eastern Ukraine, President Biden unveiled a $800 million package which includes military drones and attack helicopters.To learn more about how CNN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices

Sources tell CNN that a suspect has been identified in the terrifying New York City subway attack that has left at least 10 people with gunshot wounds. We’re standing by for an official update on the urgent manhunt.  Plus, for the first time since Russian troops invaded Ukraine, President Biden calls the atrocities emerging from the war zone a “genocide.” This as Vladimir Putin declares the peace talks are at a “dead end” and vows to continue the war.To learn more about how CNN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices

New indications tonight that Russia is planning a major offensive in eastern Ukraine. The Pentagon now says early signs point to Russian reinforcements arriving in the Donbas region in the south. President Zelensky says tens of thousands of Ukrainians are dead inside the devastated city of Mariupol as he makes a grim warning about the future.To learn more about how CNN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices

Russia hits a train station in Ukraine packed with people fleeing the war, killing at least 50 people and injuring hundreds more. We’re learning more about the missile strike and getting new reaction to the slaughter that included children. Plus, Ukraine’s top prosecutor joins to answer where her investigation of Russian war crimes stands now.To learn more about how CNN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices

Amid growing evidence of Russian atrocities in Ukraine, Kremlin troops were caught talking about killing civilians in intercepted radio messages as the United Nations suspended Russia from the U.N. Human Rights Council. Plus, Democrats cheer a history-making vote in the Senate as Judge Ketanji Brown Jackson has now been confirmed as the first black woman to serve on the Supreme Court. To learn more about how CNN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices

The U.S. said that the horrors in Bucha appear "premeditated" and "very deliberate." In an exclusive interview with CNN's Dana Bash, Polish President Andrzej Duda said the massacres in Bucha and in other cities fulfill the "features of a genocide." Norwegian Prime Minister Jonas Gahr Støre joins Wolf to share whether he agrees, calling the atrocities "brutal massacres" and "war crimes," and said "those responsible have to be held responsible." And, President Biden said today that this war could continue for a long time. Should the world prepare for a years-long crisis?To learn more about how CNN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices

CNN correspondents traveled to the town of Borodianka to see the destruction to large residential buildings and homes as well as civilian bodies strewn throughout the town. Ukrainian authorities say they believe there could be more towns with these kinds of atrocities. And, in a speech to the United Nations Security Council, Ukrainian President Volodymyr Zelensky said the organization must "act immediately" on Russia or "dissolve itself." Top advisor to Zelensky Ihor Zhovkva discusses Zelensky's remarks and what the prospects of negotiations look like now.To learn more about how CNN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices

Scenes from the Ukrainian town of Bucha indicate civilians were deliberately targeted as bodies of civilians have been found lying across the street and in mass graves. CNN Chief International Anchor Christiane Amanpour explains what these disturbing images reveal about the brutal nature of Russia's attack. And, President Biden called for a war crime trial to take place against Russian President Vladimir Putin.To learn more about how CNN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices

There is a new flash point in the war as the Kremlin accuses Ukraine of attacking a fuel depot inside of Russia and warns it could escalate the conflict. Are the Ukrainians responsible? We discuss what the White House is and notably is not saying about the strike tonight. Plus, thousands of Ukrainians just made the perilous escape from the southern city of Mariupol. CNN is on the scene during their emotional arrival. To learn more about how CNN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices