Our live coverage of Russia's invasion of Ukraine has moved here.
Ukrainian President Volodymyr Zelensky said evacuation corridors did not work Wednesday as the Russian military did not stop shelling.
“We are ready to take people out and send humanitarian aid. But we can't expose people to shelling on the road,” he said in a video message posted to Facebook early Thursday.
Zelenksy said residents who previously escaped from the besieged southeastern city of Mariupol are being moved to safer areas.
“We are taking away Mariupol residents who managed to escape to Berdyansk. We are taking them to Zaporizhzhia. In total, more than 6,000 Mariupol residents were transported in one day, more than 2,000 of them are children," he said.
However, Zelensky said the Russian military tried to disrupt that movement too, firing on the section of road between Vasylivka and Kamyanske in the Zaporizhzhia region. Five Ukrainians were injured, two of them children, he said.
In the northern city of Chernihiv, Russian forces fired at civilians who were standing in line for bread, killing 10 people, Zelensky added.
Talks continue: The President said if Russia’s war against Ukraine continues, “the mothers of Russia will lose more children than in the Afghan and Chechen wars combined.”
Zelensky said negotiations with Russia are ongoing and that his priorities in the talks are clear: “the end of the war, security guarantees, sovereignty, restoration of territorial integrity, real guarantees for our country, real protection for our country.”
Germany speech: Zelensky is due to address the German Parliament Thursday and said he will “continue to fight for even greater support for Ukraine, for even greater pressure on Russia.” It comes after he told the US Congress "we need you right now" in a historic speech that invoked tragedies in American history like the Pearl Harbor attack and 9/11.
Russia is resorting to the use of older, less precise weapons that are less militarily effective and more likely to result in civilian casualties, according to the UK Ministry of Defence's latest intelligence update Thursday.
Due to the delays in "achieving their objectives and failure to control Ukrainian airspace," the ministry said Russia has probably “expended far more stand-off air launched weapons than originally planned,” leading them to resort to weapons that are less militarily effective.
"Stand-off air launched weapons" are munitions fired from aircraft that are not in close range of a target.
Firing from a distance allows for the delivery of the weapon while minimizing possible harm to the aircrew from retaliatory attack.
Irina Protchenko, 68, sings the Ukrainian anthem while steadily working at her sewing machine in a small apartment in central Ukraine.
She retired not long ago from a factory in the outskirts of Kyiv where she spent 50 years tailoring men's suits and coats for clothing giants such as Hugo Boss and Lacoste.
Now, she's sewing flak jackets and balaclavas with her children and grandchildren for Ukrainians traveling east to protect their country from Russian invasion.
"I should be sewing tuxedos for weddings," not flak jackets, she told CNN.
"The biggest reward will be if one of these flak jackets saves the life of one of our defenders," Protchenko said. With each finished vest, she counts it as one more victory for Ukraine.
The entire operation relies on donations, which have come in the form of fabric, thread and some monetary donations. The armor plates that go inside the flak jackets come from scrap metal salvaged from old cars by a local mechanic and then welded together by an engineer.
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The constant bombardment of military strikes is causing significant destruction across Ukraine, as seen on new Maxar Technologies satellite images.
Volnovakha: In southeastern Ukraine, about 35 miles (55 kilometers) north of Mariupol, much of the small city of Volnovakha lies in ruins — destroyed by military strikes. Where some buildings once stood, only scorched structures remain.
On Wednesday, Russian state media interviewed Russian-backed separatists from the Donbas region in the city, who claimed they had taken control of it from Ukrainian forces.
The roof of the city's train station looks like it's been punched in. Buildings northeast of it have their roofs knocked in too. The only evidence that some buildings ever stood near the central square is their charred walls.
On the northern side of Volnovakha, a church and an apartment complex have been devastated. Debris is seen covering the ground around them.
At a roundabout toward the northwestern side of town, nearly all of the buildings seen in the satellite image have sustained significant damage.
Chernihiv: In a field about 10 miles (17 kilometers) northeast of Chernihiv in northern Ukraine, more than a dozen Russian self-propelled howitzers and multiple rocket launch systems are seen.
In eastern Chernihiv, a number of homes surrounding a roundabout are seen on fire.
In another satellite image, multipurpose sports venue Chernihiv Stadium has sustained massive damage to the stands and a huge impact crater is seen in the center of the field.
Kharkiv: In northeast Ukraine, a number of houses near a large apartment complex are on fire in central Kharkiv. Further north of the city, a snow-covered field near the airfield at the Kharkiv Aircraft Manufacturing Company is dotted with impact craters.
Russia has already crossed "all the red lines," Ukrainian President Volodymyr Zelensky said in an interview with NBC’s Lester Holt Wednesday evening.
When asked by Holt if a chemical attack by Russia would be a red line that would prompt the United States to become more actively involved in combat, Zelensky said, "I believe that Russians have already crossed all the red lines when they started shelling civilians."
Russia has already killed more than 100 children, Zelensky said, adding: "I don’t understand the meaning of red lines. What else should we wait for? For letting Russians kill 200, 300 or 400 children?"
The President said Ukrainians are "unconquerable" and if the Russians were to take over Kyiv, they would not be able to conquer the people of Ukraine.
"The heart will always remain with Ukrainians," he said.
Zelensky also said negotiations between Ukraine and Russia are "still in progress" but are “difficult.”
"Any war could be finished at the table of negotiations," he said.
A senior adviser to Ukraine's President Volodymyr Zelensky on Wednesday claimed the Ukrainian army is beginning to counterstrike Russian forces in a number of directions.
In a statement released on Telegram, adviser Mykhailo Podolyak said the "Ukrainian army is beginning a counterstrike on a number of active directions. This fact is drastically changing the dispositions of the sides."
The "Russian administration is trying to find allies whose soldiers would be ready to die on the field," Podolyak said.
Some context: According to a UK Ministry of Defence intelligence assessment on Tuesday, the Russian military is calling up reinforcements from across the country as it faces "continued personnel losses" in Ukraine.
The assessment said Russia was redeploying forces from as far away as "its Eastern Military District, Pacific Fleet and Armenia" and was increasingly tapping other sources of fighters such as "private military companies, Syrians, and other mercenaries."
Melitopol Mayor Ivan Fedorov was freed from detention by Russian forces as part of a prisoner swap, Ukraine’s Center for Strategic Communications and Information Security said in a statement Thursday.
Fedorov was exchanged for nine Russian soldiers, whom the Ukrainians say are “conscripts,” born between 2002 and 2003, the statement said.
Russian President Vladimir Putin has denied sending conscripts to Ukraine. But Russia's Ministry of Defense previously confirmed that conscripts have been involved in the invasion and that some were taken prisoner by Ukrainian forces.
Fedorov was taken to Luhansk after his detention and held for five days. He was allegedly advised to cooperate with Russia, which he declined to do, according to Ukraine’s Center for Strategic Communications and Information Security.
“We have finally managed to release the mayor of Melitopol from captivity. Our Ukrainian Melitopol, which did not submit and will not submit to the occupiers," Ukrainian President Volodymyr Zelensky said in a video message posted to Facebook early Thursday.
“Ivan Fedorov is free. I talked to him today. The Russian military abducted him on March 11, trying to persuade him to collaborate. But our man withstood. He did not give up. Just as we all endure. You all. Just as we all do not give up. Because we are Ukrainians. And we always protect our own.”
Earlier, Kyrylo Tymoshenko, a senior official in Zelensky's office, said on his Telegram channel that Fedorov was rescued in a "special operation."
US President Joe Biden called President Vladimir Putin a "war criminal" on Wednesday as Russia intensifies its attack on Ukraine. "I think he is a war criminal," Biden said.
Biden’s designation reflects a shift from the administration’s previous stance. Officials, including Biden, had previously stopped short of saying war crimes were being committed in Ukraine, citing ongoing investigations into whether that term could be used.
Here's a catch up of some of the latest developments that have unfolded:
- Fate of hundreds sheltering in bombed theater in Mariupol is "unknown": A theater where hundreds of people had taken shelter in Mariupol was bombed on Wednesday, according to local authorities, as hundreds of thousands of people remain trapped in the coastal Ukrainian city that has been encircled for weeks by Russian forces. Mariupol City Council, who shared an image of the destroyed building, said Russian forces had "purposefully and cynically destroyed the Drama Theater in the heart of Mariupol." Pavlo Kyrylenko, the head of Donetsk regional administration which includes Mariupol, said "several hundred Mariupol residents were hiding in the Drama Theater. Their fate is unknown, as the entrance to the bomb shelter is blocked by rubble," he said.
- "Children" was spelled out on two sides of Mariupol theater before bombing, satellite images show: New satellite images from Maxar Technologies show that on Monday, the word "children" was spelled out outside the theater that the Mariupol City Council said was bombed on Wednesday. The City Council said that on Wednesday that Russian forces had "purposefully and cynically destroyed the Drama Theater in the heart of Mariupol. The plane dropped a bomb on a building where hundreds of peaceful Mariupol residents were hiding."
- At least 103 children killed in Ukraine so far, President Zelensky says: At least 103 children have been killed in Ukraine since the start of the Russian invasion, Ukrainian president Volodymyr Zelensky said in a video message posted to Facebook on Wednesday. Speaking before addressing the US Congress, but released on Facebook afterward, Zelensky said in the video, “Last night, Russian troops continued shelling Ukrainian territory, our peaceful cities, our citizens. Kharkiv and the region ... They bombed the coast of the Odesa region. They fired missiles at Kyiv. Hit civilian infrastructure of Zaporizhzhia.” He added, “As of this morning, 103 children have been killed.”
- NATO "not as essential" as no-fly zone, Ukraine's deputy PM tells CNN: Olha Stefanishyna, deputy prime minister for European and Euro-Atlantic Integration of Ukraine, told CNN on Wednesday that President Volodymyr Zelensky’s address to the US Congress didn’t mention NATO because that is “not as essential” as a no-fly zone and weapons — and political aspirations will have to go on hold for now. CNN’s Sam Kiley spoke to Stefanishyna remotely from a secure hidden location in the Ukrainian capital of Kyiv on Wednesday, following Zelensky’s address.