At least six people have been killed in Kryvyi Rih, and two people killed in occupied Donetsk, after several strikes across Ukraine

At least six people, including a 10-year-old child, have been killed and more than 50 people injured when Russia struck a high-rise apartment in Kryvyi Rih. Authorities said people were trapped under rubble. Oleksiy Kuleba, the deputy head of Volodymyr Zelenskiy’s office, called for revenge, saying: “Every day, Ukrainian cities are under fire from Russian terrorists. Sumy, Zaporizhzhia, Dnipro, Kharkiv. This is only for the last few days.” He said targeting civilians was a sign of “the despair and defeat of the Russian Federation at the front”.

Ukraine’s first lady, Olena Zelenska, said “This is how the week begins in a Ukrainian city that just wants a quiet, normal life. Russia wants to take peace and life away”, and offered condolences to the victims and their families. The city is the home town of both Zelenska and her husband.

On Telegram, the Ukrainian president, Volodymyr Zelenskiy, said more than 350 people are working on the rescue mission in Kryvyi Rih after what he said were two Russian ballistic missiles hit the city.

Russian opposition politician Vladimir Kara-Murza on Monday lost an appeal against his 25-year jail sentence, the RIA state news agency reported. Kara-Murza, who holds Russian and British citizenship, was jailed for 25 years in April for treason and spreading “false information” about Russia’s war in Ukraine, Reuters reports. Britain added six new designations to its Russia sanctions list, an update to the government website showed on Monday, targeting judges and officials involved in the trial of Kara-Murza.

According to Reuters, Ukraine and Croatia have agreed on the possibility of using Croatian ports on the Danube and the Adriatic Sea for the export of Ukrainian grain, Ukraine’s foreign minister Dmytro Kuleba said after talks with his Croatian counterpart on Monday.

Russian airstrikes destroyed an estimated 180,000 metric tonnes of grain crops in the space of nine days this month, the Ukrainian foreign ministry said on Monday, Reuters reports.

Mykhailo Fedorov, Ukraine’s minister of digital transformation, said Russia lost 87 units of equipment last week, including 33 strongholds, 26 armored combat vehicles and 15 tanks. These claims have not been independently verified.

The Kremlin on Monday described a recent drone attack on Moscow as an “act of desperation” by Ukraine after setbacks on the battlefield. AFP reports that Kremlin spokesperson, Dmitry Peskov, said it has been “very difficult” for Ukrainian forces on the frontline since it launched its counteroffensive in June. He added: “It is obvious that the counteroffensive is not a success. In an act of desperation, the regime in Kyiv is turning to such terrorist attacks. All possible measures have been taken to defend civil infrastructure [against Ukrainian strikes].”

Ukrainian forces have recaptured nearly 15 sq km (5.8 sq miles) of land from Russian troops in the east and south over the past week during their counteroffensive, a senior defence official said on Monday. Kyiv’s forces have now retaken 204.7 sq km in the south since they launched a major push back against Russian forces early last month, deputy defence minister Hanna Maliar said on Telegram.

The Kremlin said on Monday that Ukraine’s counteroffensive is “not working out as planned” and that Nato resources supplied to Kyiv had been “wasted”, during the course of a two month-long operation that has seen limited gains for Ukraine.

Another 19 wounded in overnight attack on the southern Ukrainian port city, governor says

• What we know on day 515 of the invasion

Ukraine’s most famous rock star Andriy Khlyvnyuk has said the transition to becoming a soldier, receiving orders, was “surprisingly easy”.

I thought it would be [difficult]. I was afraid of the brutality, noise and dirt of war. But it wasn’t – it was surprisingly easy.” Why? “Look, if I was sent somewhere to fight, I’d be useless, terrified; I don’t want to kill or be killed. But that’s not what happened. They came for our streets and our children’s playgrounds.

Music is a universal language. But music also comes from where you come from; it reflects the feeling of home, and what home means – and on the obligation to protect your family, your neighbour. Anyone who grew up learning their language, and their poets and music by heart knows to say to the empire, any empire: ‘You will not do this to us.’

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• What we know on day 514 of the invasion

Road traffic on the bridge linking Russia to the Crimean peninsula has been temporarily blocked, an official Telegram channel has said.

“Those on the bridge and in the inspection area are asked to remain calm and follow the instructions of transportation security officers,” it said.

A preliminary assessment in Odesa has revealed damage to several museums inside the world heritage property, including the Odesa Archaeological Museum, the Odesa Maritime Museum and the Odesa Literature Museum. They had all been marked by Unesco and local authorities with the Blue Shield, the distinctive emblem of the 1954 Hague Convention.