Russia and Ukraine have both launched criminal investigations after accusing the other of shelling a prison Friday in the separatist eastern region of Donetsk, killing dozens of Ukrainian prisoners of war.
The Ukrainian prosecutor general’s office wrote on Telegram that 40 people died and 130 people were injured in “the territory of correctional colony No. 120 in the temporarily occupied village of Olenivka.” The prisoners were captured after Mariupol fell in May.
The Ukrainian military denied responsibility for rocket or artillery strikes on Olenivka and claimed Russian forces shelled the prison to accuse Ukraine of war crimes to cover up torture and executions that took place there.
Meanwhile, Russia claimed that Ukraine used U.S.-supplied HIMARS multiple rocket launchers in the attack on the prison, located in the Russian-controlled Donetsk region. Neither countries’ claim could be independently verified.
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Latest developments:
►Ukraine has identified 5,600 children who were forcibly deported to Russia. Ukrainian authorities are working on returning these children home, and deputy interior minister Kateryna Pavlichenko said the numbers are expected to rise.
►Ukrainian President Volodymyr Zelenskyy said the first grain exports since the war began may begin in the coming days. Several loaded ships weren’t able to set sail since Russia’s attacks started in February. Zelenskyy said the country is “fully prepared” and is awaiting signals from Turkey and the United Nations before sending exports.
►U.S. lawmakers were given an estimate of the number of casualties among Russian forces since the beginning of its invasion in Ukraine: 75,000 — significantly higher than previous estimates. There is no accurate total for casualties, and both sides have downplayed losses.
►The mayor of Ukraine’s second largest city, Kharkiv, said a central part of the northeastern city was hit early Friday, including a two-story building and a higher education institution.
Russian authorities plan to completely restore Mariupol within three years, Russia’s Deputy Prime Minister Marat Khusnullin said at a meeting with President Vladimir Putin.
The proposed plans include an airport and new transport infrastructure, with 90 social facilities restored sometime this year. “We plan to make a new transport interchange a hub where there will be a railway station, a port and tram lines,” Khusnullin said.
Russia claimed victory over Mariupol in May after a near three-month siege that destroyed much of the strategic port city. Over 20,000 civilians were feared dead. 
Khusnullin’s proposed plans included determining what would happen to the Azovstal steel plant in Maripol. “We are discussing this issue a lot with the residents, we see that it is still possible to save some jobs without restoring harmful production,” he said.
Russian Foreign Minister Sergei Lavrov on Friday announced plans to propose a call time with Secretary of State Antony Blinken, who he has not spoken with since Feb. 24, to discuss a prisoner exchange that would send athlete Brittney Griner back to U.S. soil, Reuters reported.
Lavrov commented during a trip to Uzbekistan, “It’s clear this is unlikely to work out today. But in the coming days, we will offer our American colleagues a convenient date.”
Blinken said Wednesday, the date of Griner’s sixth court appearance since her July 1 trial began, that the U.S. had made a “substantial” proposal to Russia to bring home the detained Griner and former Marine Paul Whelan, also serving Russian prison time.
CNN has reported that the proposed deal would involve a swap of the American citizens with convicted arms trafficker Viktor Bout, who is serving time in the U.S. Griner has been detained since Feb. 17 on drug charges for carrying marijuana in vape cartridges. Whelan has been imprisoned in Russia since 2018 on espionage charges.
Russian officials acknowledged Thursday that discussions involving Griner’s possible release have taken place, but said they should be not be conducted on a public stage.
Russian forces struck the Kyiv region with six missiles launched from the Black Sea on Thursday for the first time since shifting focus to the eastern Donbas region weeks ago after failing to capture the capital. 
Oleksii Hromov, a senior official with Ukraine’s General Staff, said the missiles hit a military unit in the village of Liutizh on the outskirts of the capital. Russia also pounded the northern Chernihiv region. 
Fifteen people were wounded in the Russian strikes, five of them civilians, Kyiv regional Gov. Oleksiy Kuleba said.
Meanwhile, five people were killed and 25 wounded in a Russian rocket attack on the city of Kropvynytskyi, about 150 miles southeast of Kyiv, according to the deputy governor of Ukraine’s Kirovohrad region, Andriy Raikovich. He said the attack hit hangars at an air academy, damaging civilian planes.
Ukraine is gaining momentum in its counterattack while working to cut off access to the occupied city of Kherson, according to a British Defense Ministry assessment.
The British military said Ukraine has used its new, Western-supplied long-range artillery to damage at least three of the bridges across the Dnieper that Russia relies on to supply its forces.
Kyiv’s forces are planning to isolate Russian troops and leave them with three options — “retreat, if possible, surrender or be destroyed,” Ukrainian presidential adviser Oleksiy Arestovich said, according to Ukrainian media.
Contributing: The Associated Press

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