Ukraine-Russia war latest: French instructors in Ukraine would be 'legitimate target', Lavrov says on visit to West Africa

We're pausing our coverage for today but we will be back tomorrow with more updates.

Here is a rundown of the key developments today:

• Ukraine has used American weapons to strike inside Russia, according to an unnamed Western source;
• Joe Biden will hold talks with Volodymyr Zelenskyy in Normandy this week during his visit celebrating the 80th anniversary of D-Day;
• Russian foreign minister Sergei Lavrov has been visiting countries in Africa as part of an ongoing diplomatic offensive from the Kremlin;
• A former British defence attache has warned Russia's disinformation campaigns are "only going to get worse" as EU parliament elections and the Olympics approach.

You can scroll back through the blog to read all our updates from today.

A 26-year-old man of dual Ukrainian-Russian nationality has been arrested in possession of explosives after some of them detonated in a hotel room north of Paris.

The man was treated by fire-fighters after he "suffered significant burns following an explosion," on Monday, according to a source. 

A source at the French anti-terror prosecutor's office said they had taken charge of the case and opened an investigation on suspicion of a terrorist conspiracy. 

A subsequent search of his room led to the discovery of products and materials intended for the manufacture of explosive devices, the source added. 

France's domestic spy agency DGSI is handling the investigation, Reuters reports. 

Ukraine has used American weapons to strike inside Russia in recent days, according to a Western official.

The weapons were used under recently approved guidance from Joe Biden, allowing US arms to be used to strike inside Russia in defence of Kharkiv, Ukraine's second city.

The official spoke to Reuters on condition of anonymity.

Mr Biden's directive allows for US-supplied weapons to be used to strike Russian forces that are attacking or preparing to attack.

It does not change US policy that directs Ukraine not to use American-provided tactical or long-range missiles and other munitions to make offensive strikes inside Russia, US officials said.

Ukrainian officials had stepped up calls on the US to allow Kyiv's forces to defend themselves against attacks originating from Russian territory.

Kharkiv is 12 miles from the Russian border and has recently come under intensified Russian attack.

Volodymyr Zelenskyy has arrived in Qatar for talks with the state's emir, Sheikh Tamim bin Hamad Al Thani.

The Ukrainian president said on X that he planned to discuss Qatar's participation in a process of returning Ukrainian children abducted by Russia, as well as bilateral economic and security issues.

In March, Ukraine and Russia exchanged six children via Qatari mediation.

Earlier this week, Mr Zelenskyy made a surprise trip to the Philippines to thank the country for agreeing to participate in the upcoming peace summit being held in Switzerland.

A Russian-American man has been sentenced by a St Petersburg court to three-and-a-half years in prison on charges of "rehabilitating Nazism". 

Yuri Malev was arrested in December over social media posts in which he was alleged to have denigrated the Saint George's ribbon, a Russian military symbol of valour. 

One post reportedly contained "obscene language" and another other showed a picture of a corpse wearing the ribbon, captioned: "How to wear the Saint George's ribbon correctly". 

The court in St Petersburg said this showed disrespect for society and insulted the memory of the Great Patriotic War (the Russian name for the Second World War). 

Malev admitted guilt, according to the court. 

He was a graduate of the law faculty of St Petersburg University and had lived in the United States since 1991, according to independent Russian language media.

Baza, a Telegram channel with links to Russian authorities, said Malev was a resident of Brooklyn, New York. 

He reportedly entered Russia by bus from Estonia two weeks before he was arrested. 

Moscow routinely refers to the government in Kyiv as a "Nazi regime", despite Volodymyr Zelenskyy being Jewish.

Ukraine has been allowed to shoot down Moscow's planes over Russian territory with American weapons since the war broke out, the White House has clarified.

Ukraine "can shoot down Russian aeroplanes that pose an impending threat", national security spokesman John Kirby said. 

"And they have. They have since the beginning of the war."

The clarification was given due to confusion over Washington’s recent decision to relax rules on US-supplied weapons striking military targets on Russian soil.

Joe Biden gave authorisation for the strikes on a limited basis to help Kyiv defend itself against Kremlin forces advances towards Kharkiv.

Mr Kirby said he could not confirm reports that Ukraine had used US-supplied weapons on Russian territory for the first time.

He told reporters: "We're just not in a position on a day-to-day basis of knowing exactly what the Ukrainians are firing at what.

"It's certainly at a tactical level. So, I can't confirm that. I can tell you that they understand the guidance that they've been given."

By Ivor Bennett, Moscow correspondent 

Sergei Lavrov's trip to Africa is part of an ongoing diplomatic offensive by the Kremlin, running in parallel to its conflict in Ukraine.

Isolated from the West, Russia is trying to forge new ties and has found fertile ground in Africa.

There have been several coups in recent years that have ushered in anti-Western military juntas.

US troops were kicked out of Niger, for example, while the French had to leave Burkina Faso.

In both cases, Moscow was quick to move in as the new security guarantors, and their efforts clearly don't stop there.

This is the veteran foreign minister Lavrov's ninth visit to the continent since Russia invaded Ukraine.

Kenya, Burundi and South Africa were among his stops last year; this week it's Guinea, Congo and Burkina Faso.

In return for military support, Russia gains an ally - they may not support the war, but they won't criticise it either.

The Kremlin portrays this as the formation of a new world order, free from Western imperialism and hegemony.

But others say Russia are the neo-colonialists, painting this as a blatant attempt to expand their sphere of influence.

Ukraine's first deputy foreign minister has held talks with his Chinese counterpart in an effort to increase cooperation between the two countries, the Ukrainian ministry said. 

Ukraine's Andriy Sybiha also told Chinese Vice Foreign Minister Sun Weidong that he hoped China would participate in a Ukraine-led peace summit later in June. 

Mr Sybiha added that it could be "a good opportunity to make a practical contribution to achieving a just and lasting peace", the Ukrainian foreign ministry said.

A report earlier today (see 7.40am post) said that June's peace summit opened doors to "limited talks with Russia" - despite Russian officials not being invited.

Earlier we brought you news that Ukraine said it had shot down 22 of the 27 Shahed-type drones launched by Russia overnight (see 8.04am post). 

Now photographs have emerged of the aftermath of one of the strikes. 

Firefighters work to put out the massive blaze in the Poltava region.

As Russia opens a new front on Ukraine's northeastern border, the war has entered an important phase.

Readers have been sending in their questions to our senior correspondents and military experts for their take on the changing battlefield environment.

Today, Trevor Prew asks:

Are there any signs of an underground Russian resistance operating inside Russia, or can Russians openly criticize Putin, as long as they don't protest on the streets or mention the war.

Russia correspondent Ivor Bennett says:

In a word, no.

There wasn't much opposition to speak of in Russia even before the war, but now there's nothing left whatsoever.

All of Putin's political opponents are either exiled, jailed or dead, as are those with any connections to Alexei Navalny.

Those who dare to speak out are silenced.

At one end, are the long-time critics and opposition activists, like Vladimir Kara-Murza, the dual Russian-British national opposition who is serving a 25-year prison sentence for treason.

But at the other end are ordinary Russians, like the former schoolteacher Nikita Tushkanov sentenced to 5.5 years for comments he made online about Putin.

The crackdown on dissent seemingly knows no bounds and it's created a climate in which those who oppose the war are terrified to speak out.

They do exist - as evidenced by the huge turnout for Navalny's funeral. But that was a unique moment and is unlikely to be repeated anytime soon.