At least seven people have been killed in overnight Russian drone attacks on the Ukrainian capital, as President Volodymyr Zelenskyy urged his Western allies to put more pressure on Moscow to cease its attacks on the country in advance of peace talks in Saudi Arabia. Three people, including a five-year-old, were killed and 10 were injured in a drone attack on Kyiv, the city's military administration said on Sunday. Elsewhere, four people were killed in Russian attacks in Donetsk region, regional Governor Vadym Filashkin said, including three who died in an attack on the front-line Ukrainian town of Dobropillya. Kyiv Mayor Vitali Klitschko wrote on Telegram that emergency services were dispatched to several city districts following fires and damage. Earlier, the country's air force said Russia launched 147 drones overnight on several Ukrainian regions.

The Ukrainian military launched its largest drone barrage to date against Russia as talks got underway with US officials in Saudi Arabia. Moscow said Kyiv's strikes on civilian targets undermine the effort to settle the war, despite its own history of hitting civilian infrastructure.

Kyiv, Ukraine – On Sunday, a top Russian security official in Moscow lauded dozens of servicemen who used an abandoned natural gas pipeline as a tunnel to infiltrate a Ukraine-occupied area in the western Russian region of Kursk. "The lid of a boiling cauldron is almost closed! Good job!" Dmitry Medvedev, who served as president and prime minister before becoming deputy head of Russia's Security Council, wrote on Telegram. But a Ukrainian serviceman deployed in Kursk offered a starkly different version of how the Russians barely got out of the pipeline on Saturday – only to be reportedly killed en masse. "Some suffocated right [in the pipeline], some turned back. About a hundred came out in our rear, split into two groups and were almost immediately ambushed by our special forces. And [also killed by] a massive squall of artillery," Evhen Sazonov wrote on Telegram.

Ukraine has targeted Moscow with a large overnight drone attack as Russia's Ministry of Defence says it has shot down 337 unmanned aircraft across the country. "The Defence Ministry's air defence continues to repel a massive attack by enemy drones on Moscow," Moscow Mayor Sergei Sobyanin said on Telegram early on Tuesday. Three people are reported to have been killed and three wounded in the southern suburbs of Moscow, according to Governor Andrei Vorobyov. He added that drone debris damaged at least seven units in a residential building in another suburb southeast of the city. The attack on the Russian capital, hundreds of kilometres from the Ukrainian border, comes before a meeting between United States and Ukrainian officials in Saudi Arabia.

Atlantic Council senior fellow Ariel Cohen and Heritage Foundation senior fellow Charles'Cully' Stimson discuss the state of the war amid White House tensions with President Zelenskyy. Ukraine launched its largest-ever drone attack on Moscow on Tuesday as a senior delegation met with Secretary of State Marco Rubio and National Security Advisor Mike Waltz in Saudi Arabia for talks about ending the war with Russia. A total of 337 drones were shot down Tuesday over Russia, including 91 in the Moscow area and 126 in the Kursk region bordering Ukraine, Reuters reported, citing Russia's defense ministry. Moscow-based meat producer Miratorg said two of its employees were killed by falling debris, while 18 other people – including three children – were injured after residential buildings were struck, officials told Reuters. Images taken in Russia showed damage to cars and apartment buildings in the wake of the attack, which temporarily shut down Moscow's four airports.

One civilian was killed and three more were reportedly injured in one of the biggest Ukrainian drone attacks on Moscow in months. Moscow's Mayor Sergei Sobyanin said Russian air defence units destroyed at least 69 drones flying towards Moscow in a "massive" attack that later reports said involved more than 90 drones. Four airports in the Moscow region and the Domodedovo train network were forced to suspend services due to the attack. Several apartments were also damaged while Russia's TASS news agency reported a large fire in a car park near the Russian capital. Pro-Russian war bloggers said Kremlin forces have advanced further into the country's Kursk region as part of a major encirclement operation to push out thousands of Ukrainian soldiers holding territory inside Russia.

Ukraine has launched a "massive" early morning drone attack against the Russian capital that killed at least one person, injured several others and saw the shutdown of airports and damaged residential buildings, Moscow officials and aviation authorities said. The drone raid, the largest against Moscow in months, comes as Ukraine is poised to present the United States with a plan for a partial ceasefire with Russia during talks on Tuesday in Saudi Arabia. Andrei Vorobyov, governor of the Moscow region, said that one person was killed and three more wounded as a result of the raid, which began at 4am local time (01:00 GMT). The wave of attack drones damaged seven apartments in a residential building in the Moscow region's Ramenskoye district, Vorobyov said. Russia's Ministry of Defence said that air defences destroyed a total of 337 Ukrainian drones overnight, with 91 of them over the Moscow region.

A sprawling Russian disinformation network is manipulating Western AI chatbots to spew pro-Kremlin propaganda, researchers say, at a time when the United States is reported to have paused its cyber operations against Moscow. The Pravda network, a well-resourced Moscow-based operation to spread pro-Russian narratives globally, is said to be distorting the output of chatbots by flooding large language models (LLM) with pro-Kremlin falsehoods. A study of 10 leading AI chatbots by the disinformation watchdog NewsGuard found that they repeated falsehoods from the Pravda network more than 33% of the time, advancing a pro-Moscow agenda.

Kyiv also said that Russian forces launched two missile strikes and 72 air strikes, and used 1,024 kamikaze drones, along with 4,200 artillery attacks that targeted Ukrainian positions and settlements, AA reports. In Ukraine's Kharkiv region, Ukrainian forces said they prevented Russian advances towards Mala Shapkivka and Topoli, while Moscow's troops launched 16 attacks in Ukraine's Kupiansk region, with Kyiv's forces claiming to have repelled 14, as battles continue, Anadolu reports. Russia said oil flows through the Caspian Pipeline Consortium, a major route for supplying Kazakhstan and exporting to the global market, have been reduced by 30 to 40 percent after a Ukrainian drone attack on a pumping station. The Caspian pipeline, which ships more than 1 percent of daily global oil supplies, stretches over 1,500km (939 miles) and carries crude oil from Kazakhstan's Tengiz oilfield on Russia's northeastern shores of the Caspian Sea as well as from Russian producers. Freedom in Russia and the end of Russian President Vladimir Putin's government depends on Ukraine winning the war, former chess world champion and Kremlin critic Garry Kasparov said.

We propose a new approach to designing visual markers (analogous to QR-codes, markers for augmented reality, and robotic fiducial tags) based on the advances in deep generative networks. In our approach, the markers are obtained as color images synthesized by a deep network from input bit strings, whereas another deep network is trained to recover the bit strings back from the photos of these markers. The two networks are trained simultaneously in a joint backpropagation process that takes characteristic photometric and geometric distortions associated with marker fabrication and marker scanning into account. Additionally, a stylization loss based on statistics of activations in a pretrained classification network can be inserted into the learning in order to shift the marker appearance towards some texture prototype. In the experiments, we demonstrate that the markers obtained using our approach are capable of retaining bit strings that are long enough to be practical. The ability to automatically adapt markers according to the usage scenario and the desired capacity as well as the ability to combine information encoding with artistic stylization are the unique properties of our approach. As a byproduct, our approach provides an insight on the structure of patterns that are most suitable for recognition by ConvNets and on their ability to distinguish composite patterns.