Viktor Sokolov shown in footage released by defence ministry, day after Ukraine said he had been killed in missile strike

• What we know on day 580 of the invasion

Russia’s foreign ministry spokesperson Maria Zakharova has rather sarcastically castigated US state department spokesperson Matthew Miller for deflecting a question about the appearance of a Ukrainian veteran of a Nazi unit in the Canadian parliament. Miller had said that he was attending the UN on Friday.

Zakharova has posted to her Telegram channel to say:

Everyone was at the UN on Friday, Matthew. And everyone saw how nazism triumphed in Canada. The UN has a lot of problems, but the internet works great there.

Russia again strikes at Ukraine’s port and grain infrastructure; border crossing with Romania closed following drone attack

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Ukraine says 34 officers were killed including Black Sea fleet admiral Viktor Sokolov in its missile strike on Sevastapol last week

• What we know on day 579 of the invasion

An air alert has been declared in Mykolaiv.

Tass reports that the Russian ministry of defence has reported that it destroyed Ukrainian drones that were over the north-western part of the Black Sea near occupied Crimea, as well as over the Kursk and Bryansk regions. It claims to have shot down eight aircraft-type drones in total.

Ukrainian military says attack that apparently killed Viktor Sokolov was timed to coincide with meeting of naval officials

• Russia-Ukraine war – latest news updates

Ukraine has claimed it killed Adm Viktor Sokolov, the commander of Russia’s Black Sea fleet, along with 33 other officers, in one of Kyiv’s boldest attacks yet on the occupied peninsula of Crimea.

The Ukrainian military said Friday’s attack on the headquarters of Russia’s Black Sea fleet in Sevastopol was timed to coincide with a meeting of naval officials.

Russian forces repelled near Bakhmut after counterattacks on two villages recently retaken by Ukraine; air raid alerts in all Ukrainian regions.

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Air raid alerts were sounding in all Ukrainian regions on Sunday evening. The alerts were called at 12.30am local time on Sunday with the air force warning of incoming missile and drone strikes. Explosions were record in Kyiv Rih, and Odesa.

Two people were killed on Sunday after Russian shelling struck the southern Ukrainian city of Kherson. The region’s governor said at least eight people were also injured in the attack as Ukrainian armed forces responded to Russian advances in the east and south.

The General Staff of Ukraine’s Armed Forces says its fighters had repelled Russian attacks on two villages near Bakhmut. Russian forces had “tried to restore lost positions near Klishchiivka … but were unsuccessful.”

The mayor of Russia’s Kursk had to cancel the Kursk City Day fireworks celebration after a Ukrainian drone struck an administrative building, damaging the roof. There have been more reports of explosions.

Volodymyr Zelenskiy handed awards to two Polish volunteers during a stopover in Poland on Saturday but did not meet any officials amid strained relations between Kyiv and Warsaw over grain imports.

An imprisoned Russian opposition figure has been transferred to a maximum security prison in Siberia, where he was placed in a tiny “punishment cell”, his lawyer Vadim Prokhorov said.

Russia’s suspension of petrol exports will probably limit already tight supplies in the global market and have the biggest impact on countries that depend on Russian fuel supplies, the UK Ministry of Defence has said. In its latest intelligence update, the ministry said Russians had probably faced localised petrol and diesel shortages in recent weeks.

Pope Francis has said the weapons industry is a key driver of the “martyrdom” of Ukraine’s people in the war with Russia, saying countries should not “play games” by promising weapons and then withholding them as this would only continue their misery. The Associated Press reports that the pontiff appeared to refer to Poland’s recent announcement that it was no longer sending arms to Ukraine when reporters asked him about the war as he was returning to Rome from a visit to Marseille, France.

The Russian-installed head of the Donetsk oblast has imposed a curfew banning the presence of civilians on streets and in public places from 11pm until 4am from Mondays to Fridays, Reuters reported. Denis Pushilin published a decree on Sunday that forbade assemblies, rallies and demonstrations, in addition to other mass events, in the Russian-controlled parts of the Donetsk oblast – unless they were permitted by the local operational headquarters for military threat response.

The European Commission has sent another €1.5bn in macro-financial assistance to Ukraine. The commission has pledged a total of €18bn to Ukraine – the country has already received €12bn. The funds go towards keeping essential public services running, such as hospitals, schools and housing for relocated citizens, as well as paying wages and pensions.