Volodymyr Zelenskyy, the President of Ukraine, on Tuesday visited Bakhmut, which has been at the epicentre of fierce fighting in recent weeks.
Earlier this month, he said Russian forces had turned the eastern Ukrainian city into ruins in trying to conquer it in recent months.
Zelenskyy's office said the visit included meeting and chatting with military personnel.
Bakhmut remains in Ukrainian hands and has done for the almost 10-month war. The resistance has thwarted Moscow's goal of capturing Donetsk province, part of the Donbas region bordering Russia.
Taking Bakhmut would rupture Ukraine’s supply lines and open a route for Russian forces to press on toward Kramatorsk and Sloviansk, which are key Ukrainian strongholds in the province. Pro-Moscow separatists have controlled part of Donetsk and neighbouring Luhansk province since 2014.
Electricity supplies in the Kyiv region were at a "critical" level on Tuesday, with less than half the capital's power needs being supplied following Russian missile and drone attacks, regional officials said.
Regional governor Oleksiy Kuleba said 80% of the region was without electricity for a second day after Russian drones hit energy infrastructure around on Monday, the latest in a series of attacks on power facilities since October.
"The situation with electricity supplies remains critical," Kuleba said on the Telegram messaging platform. "I want to stress that with every shelling by the enemy, the complexity and duration of the repairs increase."
National power grid operator Ukrenergo said it could provide less than half the required consumption in the capital Kyiv. The capital's subway system was briefly stopped during the morning rush hour because the electricity supply was unstable.
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