Ukraine's President Volodymyr Zelenskyy says his troops are engaged in fierce fighting for every single meter of Sieverodonetsk.
Ukraine says Russia has destroyed all but one bridge out of Sievierodonetsk - leaving few options for anyone hoping to leave. Sievierodonetsk and neighboring Lysychansk are the last main areas in Luhansk province not under Russian control.
Ukrainian fighters say they're holding out. But without more longer range weapons and even basic ammunition from the West, the tide could be turning in Russia's favor.