Evacuations "impossible" after Severodonetsk bridges destroyed

• Fresh humanitarian supplies were also not possible now, according to Haidai.

What to watch: "Fierce battles are now going on throughout the Luhansk region. Today, Severodonetsk is becoming the new Mariupol, attracting a significant number of Russian forces," Haidai said in a post Tuesday, referring to the port city that endured weeks of bombardment before falling to Russia's military.

• The Azot chemical plant where about 500 residents, including 40 children, are sheltering was being "heavily shelled," Hadai said.

What they're saying: President Volodymyr Zelensky said in an address late Monday that the battle for the Donbas "will surely go down in military history as one of the most brutal" in Europe.

• "The price of this battle for us is very high," Zelensky said. "It's just scary.
• "And we draw the attention of our partners on a daily basis to the fact that only a sufficient number of modern artillery for Ukraine will ensure our advantage," he added.

Meanwhile, Kremlin spokesperson Dmitry Peskov responded to separatists' requests for more forces on Monday by saying the main goal of the Russian government was to "protect Donetsk and Luhansk," per Reuters.

Context: The Donbas comprises the Luhansk and Donetsk regions, both of which Russian President Vladimir Putin declared breakaway "republics" days before he ordered his forces to invade Ukraine in February.

Editor's note: This article has been updated with Hadai's comments about Mariupol and the Azot chemical plant being shelled.