Ukraine’s main intelligence agency has shared satellite images that it says show the impact of its latest strike deep inside Russian territory, targeting one of Moscow’s most advanced warplanes.

The photos show the aftermath of what was likely a drone strike on the Akhtubinsk base in southern Russia, hitting an Su-57 aircraft.

The Su-57, which is capable of carrying stealth missiles across hundreds of kilometres (miles), was among “a countable few” of its type in Moscow’s arsenal, Kyiv’s intelligence agency said. Russia has not issued any comment over the weekend addressing the Ukrainian claims of the attack on its airbase.

In a before photo taken on 7 June, Friday – a day before the attack – the airbase has an aircraft on its tarmac but the after photo taken on Saturday showed black soot spots on the same spot and craters around the parked Sukhoi.

According to reports by Russian agencies, Moscow’s armed forces obtained “more than 10” new Su-57s last year, while 76 are set to be produced by 2028.

Angry Russian military bloggers have slammed Moscow and the Russian military command after a drone strike by Ukraine damaged a top-tier warplane.

Mil-bloggers “seized on the 8 June strike to criticise the Russian military command for not constructing hangars to hide Russian aircraft from Ukrainian strikes and claimed that Russian forces could construct hangars at every military airfield in Russia for the cost of one Su-57 aircraft,” said the Washington-based think-tank The Institute for the Study of War.

An Su-57 costs an estimated $35m, it added.

Citing Ukraine’s Southern Operational Command, the ISW said that the Ukrainian forces struck one of Russia’s six operational Su-57 aircraft and that Russian forces are constructing another six aircraft.

“GUR Spokesperson Andriy Yusov stated that there may have been two Su-57 aircraft at the airfield during the 8 June strike and that the GUR is assessing battle damage,” the ISW said in its latest analysis.

France plans to provide Mirage 2000 warplanes to Ukraine and train Ukrainian pilots this summer, the French president said.

It was not confirmed how many single-engine jet fighters would be provided, by when or under what financial terms.

Mr Macron added that France had proposed to train 4,500 Ukrainian soldiers but did not say where the soldiers would be trained.

Russian president Vladimir Putin has threatened to retaliate against Western countries that are allowing Ukraine to hit Russia with their long-range missiles.

US officials expect the Group of Seven (G7) wealthy democracies to send a tough new warning next week to smaller Chinese banks to stop assisting Russia in evading Western sanctions, according to two people familiar with the matter.

Leaders gathering at the 13-15 June summit in Italy hosted by prime minister Giorgia Meloni are expected to focus heavily during their private meetings on the threat posed by burgeoning Chinese-Russian trade to the fight in Ukraine, and what to do about it.

Those conversations are likely to result in public statements on the issue involving Chinese banks, according to a US official involved in planning the event and another person briefed on the issue.

The United States and its G7 partners – Britain, Canada France, Germany, Italy and Japan – are not expected to take any immediate punitive action against any banks during the summit, such as restricting their access to the Swift messaging system or cutting off access to the dollar.

Volodymyr Zelensky said he is aiming to amp up support for the war-hit nation and hinted a new agreements of support for Kyiv in progress in a long-term plan for Ukraine’s recovery.

“One of our primary goals right now is to increase support for Ukraine in order to strengthen our society’s resilience in terms of energy, recovery after strikes, and all of the other foundations of normal life. We must protect life despite Russia’s attempts to bring more pressure and destruction,” he said last night.

Mr Zelensky added: “We are working with European partners on new agreements, particularly on additional support steps from Germany. These days, we are also working diligently to prepare a bilateral security agreement between Ukraine and the United States.”

“We are making every effort to ensure that America’s leadership is felt. I am grateful to everyone who helps,” he said.

The war in Ukraine has entered 837th day today.

Ukrainian forces have hit an ultra-modern Russian warplane stationed on an air base nearly 600km (370 miles) from the frontline, after its Western allies allowed Kyiv to use their weapons for limited strikes inside Russia.

If confirmed, it would mark Ukraine’s first known successful strike on a Su-57 fighter plane, a twin-engine stealth fighter lauded as Moscow’s most advanced military aircraft.

Satellite photos shared by Kyiv’s main intelligence agency showed the aftermath of the attack. In one photo, black soot marks and small craters can be seen dotting a concrete strip around the parked aircraft.

According to the Main Intelligence Directorate of Ukraine’s Ministry of Defence, the strike took place on Saturday at the Akhtubinsk base in southern Russia, some 589km (366 miles) from the frontline. It wasn’t immediately clear what weapons were used, but the airfield’s distance from Ukraine suggests that it was likely hit by drones.

Russian forces are likely making headway towards their longstanding goal of capturing the strategic Ukrainian town of Chasiv Yar, military sources from both sides of the war said.

A Ukrainian military source and a blogger said the Russian forces had started occupying a district of the town alongside a canal, reported Ukrainian media outlet Ukrainska Pravda.

“Over the past week, there have been more than 1,500 instances of shelling of the outskirts of Chasiv Yar from the north to the south,” it quoted its source as saying.

They added that Russian troops were using guided aerial bombs to clear areas along a major road “and with the support of multiple long-range missiles and drones they have begun to move forward and build up their forces”.

From the Russian side, its 98th Paratrooper Division said Ukrainian forces were “doing everything possible to ensure our units do not move across the canal and take up positions in the ‘New’ district on the other side”. Russian assault units were continuing to clear the canal district, it said.

Chasiv Yar stands on high ground about 20km (12 miles) to the west of Bakhmut, a town Russian forces seized a year ago after months of battles that flattened nearly all its buildings.

If captured, the town will serve as a potential staging point for Russia to advance on the key cities of Kramatorsk and Sloviansk.

Leaders such as Joe Biden and Emmanuel Macron used D-Day celebrations to underline their support for Kyiv, writes Kim Sengupta, but the West is struggling to find the production capacity for the shells and missiles the country desperately needs

Ukraine’s grid operator Ukrenergo said it would impose hour-long power cuts throughout the country this evening as demand exceeds agreed limits.

The rolling cuts would apply to domestic and industrial customers and be in effect from 4pm to 10pm (1300 GMT to 1900 GMT), Ukrenergo said on its Telegram channel.

The restrictions will not apply to “critical infrastructure” sites providing vital services.

Russia over the past two months has intensified attacks on the Ukrainian energy system, knocking out the bulk of thermal and hydropower generation capacity.

As a result, Ukraine has likely lost about 9GW of its energy-generating capacity since March, according to prime minister Denys Shmyhal.

On Friday, Kyiv ordered all ministries and regional authorities to stop using air conditioning and switch off external lighting.