Ukraine military claims it destroyed Russian Buk-M3 system

Two Belarusian citizens were detained after a drone was spotted over Polish government buildings, Prime Minister Donald Tusk said.

Poland's State Protection Service has successfully neutralized a drone, Tusk wrote on X.

The drone was reported over several government buildings, including Belweder Palace, one of the official residences of the Polish president.

US military officers attended the joint military drills between Russia and Belarus on Monday.

Russia and Belarus began the joint military Zapad-2025 exercise on Friday amid heightened tension with NATO, after Polish and other NATO aircraft shot down Russian drones in Poland's airspace.

"Who would have thought how the morning of another day of the Zapad-2025 exercise would begin?" the Belarusian Defense Ministry said in a statement.

It added that representatives from 23 countries were at the training ground, including two other NATO member states — Turkey and Hungary. 

In a video, two uniformed US officers thanked Belarusian Defense Minister Viktor Khrenin for the invitation and shook his hand.

"We will show whatever is of interest to you. Whatever you want. You can go there and see, talk to people," Khrenin told the US officers, who declined to talk to reporters.

The visit could be seen as another sign of warming ties between Washington and Russia.

Hundreds of thousands of mines lie hidden in the village of Kamianka in eastern Ukraine. Despite the danger, some want to stay and rebuild their homes.

Britain has summoned Moscow's ambassador following what the foreign office called "Russia's unprecedented violation of NATO airspace."

"Significant and unprecedented violation of Polish and NATO airspace by Russian drones last week — followed by a further incursion into Romanian airspace on Saturday — was utterly unacceptable," a Foreign, Commonwealth and Development Office spokesperson said in a statement.

"The UK stands united with Poland, Romania, Ukraine and our NATO Allies in unreservedly condemning these reckless actions, "the spokesperson said.

Poland managed to shoot down Russian drones last Wednesday in the first known action of its kind by a NATO member during Russia's war in Ukraine.

Days later, Romania scrambled warplanes when a Russian drone breached its airspace.

"The response of NATO forces demonstrates the seriousness with which NATO is treating Russia’s actions," the UK foreign office statement said, adding that NATO allies were bolstering defenses along the eastern flank, using counter-drone sensors and weapons.

Various Russian diplomats have been summoned over the incidents.

Switzerland-based campaign group the Landmine and Cluster Munition Monitor said that cluster munitions have caused over 1,200 civilian casualties in Ukraine since Russia's invasion in February 2022.

"There continue to be attacks impacting civilian areas and residential buildings. Individual attacks...have killed dozens of civilians and left hundreds injured," said Michael Hart, Cluster Munition Monitor Research Specialist.

Cluster munitions can cause severe injuries and have continued to be used by both sides during the conflict, particularly Russia.

Neither Russia nor Ukraine is party to the 2008 convention which bans the munitions.

Over 120 countries ban cluster bombs because they can kill indiscriminately over a wide area and are known to cause civilian casualties.

Cluster munitions are deployed from the ground or by aircraft and explode mid-air, spraying smaller bomblets over large areas.

Campaigners are particularly concerned about unexploded bombs that remain on the battlefield long after a conflict ends.

The munitions monitor highlighted that Lithuania became the first country ever, to withdraw from the treaty in March 2025, citing regionalsecurity concerns for doing so.

Over 1.3 million Ukrainians have entered Moldova since Russia invaded their country in February 2022. About 98,000 have stayed. For a poor country with a population of just 2.6 million, this is a massive challenge.

Ukraine's military reported there had been a disruption of the Starlink satellite internet service on Monday.

Head of Ukraine's drone units, Robert Brovdie, said on messaging platform Telegram: "Starlink went down again along the entire front. 07:28 Kyiv time."

Brovdi said that half an hour later the service was being gradually restored.

While Starlink, operated by tech billionaire Elon Musk's SpaceX, plays a vital role in hospitals, schools and other sectors, it is also an important communications tool for Ukraine's military.

During an important push by Ukraine to retake territory seized by Russia in September 2022, Musk refused a request to extend satellite internet to the naval port city of Sevastopol in Crimea to enable a strike by Ukraine.

At the time he said he feared agreeing would have made his company complicit in a "major" act of war.

Russia's ambassador to Romania has dismissed allegations of a Russian drone incursion as "provocation" from Kyiv.

Ambassador Vladimir Lipayev said Romania's charge that Russia was responsible for the intrusion was "unfounded." 

"All the facts lead one to believe that it was a deliberate provocation by the Kyiv regime" and added that Bucharest had failed to "concretely and convincingly respond" to questions posed by Russia.

Late Saturday, Romania reported an airspace breach by a Russian drone and scrambled two F-16 fighter jets.

The drone was tracked until it dropped off the radar, according to Romania's Defense Ministry.

Romania is the second NATO country to report such an incursion. Last week, Poland, with the support of NATO allies, shot down Russian drones that violated its airspace.

Ukraine Defense Intelligence (DIU) said that a special forces unit had "successfully detected and destroyed" a Russian Buk-M3 surface-to-air missile system on Sunday.

The DIU said that the important Russian defensive asset, valued between $40 to $50 million (€34 to €42 million), was struck in the occupied Zaporizhzhia region in southeastern Ukraine.

Ukraine's military said the missile system — which can engage airborne targets and both sea and land-based targets — was located near Oleksandrivka in the Melitopol district.

The claim cannot be independently verified.

The reports come as Ukraine has increased attacks on Russian infrastructure, with recent claims of attacks on oil refineries and railway lines in a bid to disrupt Russian military fuel supplies and cut off a critical source of Moscow's funding for its ongoing invasion.

On Sunday, Ukraine said it had struck the Kirishi oil refinery, one of Russia's largest.

The refinery in Kirishi is located 110 kilometers (68 miles) southeast of St. Petersburg and 800 kilometers north of Ukraine.

A key Russian defense weapon, a Buk-M3 anti-aircraft missile system, has reportedly been destroyed in the occupied Zaporizhzhia region.

The system is valued at around $40 to $50 million (€34 to €42 million) and is an important part of Russia's military arsenal.

Meanwhile, Russia's ambassador in Romania has dismissed a weekend drone incursion as "provocation" from Ukraine.

Follow developments here.