Jens Stoltenberg says Ukraine will be able to retake more land; Kyrylo Budanov accused of ‘terrorist attacks’ and arms smuggling. This live blog is closed

• Russia-Ukraine war: day 422 at a glance

China’s foreign ministry said on Friday that no country had the right to interfere in its relationship with Russia.

Reuters reports ministry spokesperson Wang Wenbin made the remark at a news briefing when asked to comment on the US Treasury secretary Janet Yellen saying that China’s “no limits” partnership with Russia indicated it was not serious about ending the war in Ukraine.

During the night air alert, the Russian military released 12 “Shahed” drones over Ukraine, eight of them shot down by air defence forces, the air force said.

At night in Poltava, the Russian army targeted a civilian infrastructure object, there is damage. There were no victims.

Russian warplane accidentally strikes city of Belgorod near Ukraine, injuring two; Zelenskiy calls on Nato to give timeframe for Ukraine accession

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The Nato secretary general, Jens Stoltenberg, has said all member countries have agreed that Ukraine will eventually join the transatlantic military alliance once the war is over, ahead of a meeting of western defence ministers discussing further military aid for Kyiv. He also told the media that, once the war in Ukraine ends, Kyiv must have “the deterrence to prevent new attacks”.

Ukraine’s defence minister, Oleksii Reznikov, posted that he had a “fruitful” bilateral meeting with his US counterpart at Ramstein airbase in Germany Friday morning. US defence secretary Lloyd Austin said international backing for Ukraine holds “strong and true”.

Ukraine’s future lies in Nato, Stoltenberg chief had said Thursday during, his first visit to the country since Russia’s invasion 14 months ago. Nato’s chief pledged continued military support for Ukraine, saying: “Nato stands with you today, tomorrow and for as long as it takes.” He invited the Ukrainian president, Volodymyr Zelenskiy, to the Nato summit in Vilnius in July.

Zelenskiy said Nato needed to invite Ukraine to become a member and give it a timeframe for accession. “There is not a single objective barrier to the political decision to invite Ukraine into the alliance,” he said. “And now, when most people in Nato countries and the majority of Ukrainians support Nato accession, is the time for the corresponding decisions.”

A Russian warplane has accidentally fired a weapon into the city of Belgorod near Ukraine, causing an explosion and damaging buildings, the Tass news agency cited the Russian defence ministry as saying. Late on Thursday, local authorities reported a large blast in the city, which lies just across the border from Ukraine. Belgorod’s regional governor, Vyacheslav Gladkov, said two women had been injured and four apartment buildings and four cars damaged. Announcing a state of emergency, he said on the Telegram messaging app there was a “huge” crater 20 metres (65ft) wide in the city centre.

Ukraine’s air defence has claimed to have downed eight Iranian-manufactured “Shahed” drones overnight.

Germany, Poland and Ukraine signed an agreement on Friday for a hub to repair Leopard tanks used in Ukraine to fight Russian forces

The first trucks carrying Ukrainian food products including corn and eggs were bound to start transit via Poland to the Netherlands on Friday morning, a Polish customs official said, as rules allowing the shipments took effect overnight.

The G7 is considering a near-total ban on exports to Russia, Kyodo news agency reported on Friday, citing Japanese government sources.

EU countries are haggling over how to fulfil a promise to supply Ukraine with ammunition, following criticism from Kyiv that delays were costing lives. France, backed by Greece and Cyprus, is pressing to ensure that an EU plan to purchase €1bn (£880m / $1.1bn) of ammunition for Ukraine is fulfilled via a fully-EU supply chain.

A Moscow court issued a warrant for the arrest of the head of Ukrainian military intelligence, Kyrylo Budanov, accusing the spy chief of organising “terrorist attacks” inside Russia.

The UK imposed sanctions on five people linked to the arrest of Kremlin critic Vladimir Kara-Murza, who was jailed for 25 years this week. Elena Lenskaya – a judge who approved Kara-Murza’s arrest, along with Denis Kolesnikov and Andrei Zadachin – investigators involved in the arrest of Kara-Murza, will all be hit with sanctions. FSB agents Alexander Samofal and Konstantin Kudryavtsev, who followed Kara-Murza on multiple trips before he was poisoned in 2015, will also be receive sanctions. Kara-Murza holds dual British-Russian citizenship.

Sergei Lavrov, Russia’s foreign minister, will meet the UN secretary general, António Guterres, on Monday, according to Russia’s ambassador to the UN. The two last met at the G20 summit in Bali in November. According to ambassador Vassily Nebenzia, the Black Sea grain deal will be an item for the meeting on Monday.

A group of Ukrainian servicemen has been accused of treason for giving away information during an unauthorised mission that enabled Russia to attack a military airfield, Ukraine’s SBU security agency said. It announced in a statement that the servicemen had attempted, “without coordination with the relevant state authorities”, to seize a Russian plane last July after its pilot said he would defect.

Sergei Lavrov to meet António Guterres on Monday; US to discuss export ban at G7 leaders’ summit. This live blog is now closed

• At a glance: what we know on day 421 of the invasion

DR, Denmark’s public broadcaster, is reporting that foreign minister Lars Løkke Rasmussen and acting defence minister Troels Lund Poulsen have said the 14 Leopard 2 tanks being donated by the Netherlands and Denmark could be with Ukraine in early 2024.

Poulsen is quoted as saying they are not Danish tanks, but tanks “which are bought in collaboration with the Netherlands”.

Nato chief makes first Kyiv visit since start of full-scale invasion; Denmark and Netherlands to donate 14 Leopard tanks to Ukraine

This live blog has now closed, you can read more of our Ukraine war coverage here

Ukraine’s agriculture minister, Mykola Solsky, confirmed on Wednesday that the transit of Ukrainian grain and food products will resume through Poland after an agreement reached in talks with Warsaw.

But Reuters reports he again raised concerns about the status of an agreement with Moscow on the safe passage of ships carrying grain from Ukrainian Black Sea ports, saying it was impossible to predict how many vessels Moscow would allow through.

Ukraine confirms grain transit to resume in Poland; Patriot air defence systems delivered

West condemns sentencing of Kremlin critic Vladimir Kara-Murza to 25 years in prison; US ambassador makes first visit to jailed Wall Street Journal reporter Evan Gershkovich

The UK has condemned the sentencing of Russian opposition activist Vladimir Kara-Murza, who was jailed for 25 years for opposing the war in Ukraine. UK foreign secretary James Cleverly summoned the Russian ambassador, Andrei Kelin, for an explanation. Kara-Murza holds dual Russian-British citizenship.

Kara-Murza’s wife, Evgenia Kara-Murza, told British broadcaster LBC that she was “baffled” by the UK government’s “weak” response. “Introducing sanctions against his perpetrators would actually be a very practical step that I would very much like to see,” she said.

The UN’s human rights head, Volker Türk, urged Russia to release him, while Baltic neighbour Latvia sanctioned 10 Russian officials and lawyers involved in the case.

US ambassador to Russia Lynne Tracy said she had made her first visit to jailed Wall Street reporter Evan Gershkovich, who was arrested in Russia two weeks ago on charges of spying. “He feels well and is holding up. We reiterate our call for Evan’s immediate release,” Tracy said.

The United States and more than 40 other countries said in a joint statement that they were deeply concerned over Russia’s detainment of a Wall Street Journal reporter and protested Moscow’s “efforts to limit and intimidate the media.” The statement read further: “We urge Russian Federation authorities to release those they hold on political grounds, and to end the draconian crackdown on freedom of expression, including against members of the media.”

Two Russian fighter jets and a spy plane flying close to Nato airspace have been intercepted by the UK and German air forces. Eurofighter typhoons from the RAF and the German air force’s 71 Richtofen Wing were scrambled to intercept the jets as they flew over the Baltic Sea and Gulf of Finland.

The US has blasted Brazil’s approach to the war in Ukraine and accused it of parroting Russian and Chinese propaganda after president Luiz Inácio Lula da Silva said on a trip to China that the US “needs to stop encouraging war and start talking about peace”. The US’s national security council spokesperson John Kirby said: “In this case, Brazil is parroting Russian and Chinese propaganda without at all looking at the facts.”

Russian foreign minister Sergei Lavrov thanked “our Brazilian friends for their clear understanding of the genesis of the situation (in Ukraine)“ after meeting his Brazilian counterpart Mauro Vieira in Brasília at the start of a Latin American tour. He was later due to meet Lula.

The Pentagon said it expected findings within 45 days from a review into how the US military handles classified information after last week’s arrest of an airman over the leak a trove of highly classified documents online.

Russia said it had repelled an “illegal” Ukrainian attempt to infiltrate Russian territory in the southern border region of Bryansk, 11 days after reporting a similar incident. “The intruder stepped on a mined protection line,” said regional governor Alexander Bogomaz on Telegram.

The Kremlin has said prospects for a renewal of the Black Sea grain initiative, in which Russia allows Ukraine to ship agricultural exports from its Black Sea ports via Turkey, were “not so bright”. Russia has repeatedly complained that western economic sanctions are preventing it from exporting agricultural products, and that these need to be lifted in order for it to agree to any extension.

Slovakia will temporarily halt imports of grains and other selected products from Ukraine to protect its farmers, joining Poland and Hungary in the move, a government spokesperson said on Monday. Ukraine and Poland meanwhile began talks aimed at reaching an agreement on imports.

Slovakia has handed over all 13 MiG-29 fighter jets it had pledged to Ukraine, the Slovak defence ministry.

Almost 500 children have been killed in Ukraine since Russia’s invasion, according to a report by the Ukrainian prosecutor general. As of Monday, 470 children had been killed and 948 injured, it said, adding that the department believes that the number of injured children is higher.

Reuters and Agence France-Presse contributed to this report

UN condemns 25-year prison sentence for Vladimir Kara-Murza for criticising the war in Ukraine

• At a glance: what we know on day 418 of the invasion

Ukraine’s agriculture minister said Kyiv would aim to secure the reopening of food and grain transit via Poland as a “first step” at talks in Warsaw on Monday, after Poland and Hungary announced bans on some imports from Ukraine.

Agriculture minister Mykola Solsky also said there would be additional talks this week in Romania on Wednesday, and in Slovakia on Thursday. Reuters reports the minister’s comments were published on the Telegram messaging app by the agriculture ministry.