Ukraine now says that it has lost half of its energy system amid recent stepped-up Russian aerial attacks, which have continued to include suicide drones, some of which are believed supplied by Iran. President Volodymyr Zelensky communicated this in a Monday phone call with President Joe Biden, briefing the US leader on "the consequences of the Russian missile terror, as a result of which about 50% of the Ukrainian energy infrastructure was destroyed."

In the mid-afternoon on Tuesday (local time), air raid alerts have reportedly been issued all across Ukraine, with sirens blaring in the capital after Zelensky warned that the next major wave of Russian airstrikes are imminent.

Starting Friday Kyiv authorities began revising their estimate upward from the 40% they had been estimating in statements as of weeks ago. Ukraine's Prime Minister Denys Shmygal recently described, "Unfortunately, Russia continues missile strikes on Ukraine's critical civilian infrastructure, fighting against the civilian population and depriving them of light, water, heat and communications during the winter... Nearly half of our energy system is disabled."