Ukraine's Energy Ministry and the national grid operator Ukrenerho say the country's battered energy infrastructure was targeted again in a large-scale Russian missile and drone attack early on June 22.
Separately, Mayor Ihor Terekhov said that at least three people were killed and at least 38 injured in a Russian bomb attack on a civilian site in Kharkiv, Ukraine’s second-largest city some 30 kilometers from the Russian border.
“There are dead and wounded. The strike hit a residential building,” Terekhov wrote on Telegram.
Regional Governor Oleh Synyehubov said on Telegram that "doctors are fighting for the lives of four of the patients -- two women and two men, who are in serious condition."
The latest series of strikes damaged power transmission systems in the Zaporizhzhya and Lviv regions, Ukrenerho said in a statement on Telegram, adding that two employees needed hospitalization after sustaining injuries in the attack in the Zaporizhzhya region.
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The Energy Ministry said that, because of the attack, the overhead power lines in eastern Ukraine were disconnected, which led to a decrease in energy supply in the region.
Ukrenerho said the attack was the eighth large-scale strike targeting the country's energy grid over the past three months.
Ukraine's military, meanwhile, said its air defense systems shot down 12 of 16 missiles and all 13 drones launched by Russia overnight.
Russia's Defense Ministry has not commented on the attack, which was the second one in as many days.
In the June 21 attack, five residents of the Donetsk region were killed and seven others were wounded, the head of the regional military administration, Vadym Filashkin, announced on June 22 on Telegram.
Over the past several months, Russia has systematically targeted Ukraine's critical energy infrastructure, causing enormous damage and triggering rolling blackouts affecting the civilian population.
According to estimates, about half of Ukraine's power-generating capacity has been destroyed.
Ukrainian President Volodomyr Zelenskiy said in his nightly video address of June 22 that Russia has fired 2,400 guided bombs against Ukraine this month, including some 700 against Kharkiv alone.
The president repeated his constant plea for additional air defenses from his Western allies.
"We need strong decisions from our partners so that we can destroy Russian terrorists and Russian combat aircraft where they are," he said. "We are grateful for the approved [weapons] packages, but we need them in full supply and on the battlefield – without delays."
Zelenskiy said during a June 20 meeting with senior Ukrainian military officials that he hopes to develop a renewable energy infrastructure to offset the energy crisis caused by the Russian attacks.
In return, Ukrainian drones have struck deeper inside Russia, damaging energy facilities critical for Moscow's military effort, mainly oil installations.
On June 22, Russia's Defense Ministry said its air defense systems downed five Ukrainian drones over the Sea of Azov and the Bryansk and Smolensk regions. It did not say if the Ukrainian attack had caused any damage or injuries.
On June 21, Ukraine's military said its long-range attack drones had struck four oil refineries and radar stations inside Russia.
The claim could not be independently verified.