To play this video you need to enable JavaScript in your browser. Figure caption, Ukraine's military has shared video of a naval drone strike on a Russian tanker Ukraine's military has intensified its attacks near Russian-annexed Crimea, following up strikes on Russia's land corridor to the peninsula by targeting maritime supply routes as well. Ukraine's drone force commander Robert Brovdi, also known as Magyar, says at least 25 ships have been hit and set on fire over the past four days in the Sea of Azov, the inland sea linked to the Black Sea by the Kerch Strait. Such losses in so short a time are a clear blow to Russia's naval capability as well as Vladimir Putin's guarantee of maintaining fuel supplies. These attacks appear to be the latest phase of Ukraine's self-declared logistics lockdown which aims to choke off supplies and routes into and out of occupied Crimea.

In Russia, the impact of Ukraine's missile and drone strikes on energy infrastructure from Moscow to the Black Sea and beyond has long been evident. Drivers in the Russia-annexed Ukrainian peninsula of Crimea banned from filling their tanks so priority can be given to military vehicles. But such is the gravity of the situation it has now been explicitly acknowledged by President Vladimir Putin for the first time. Over the weekend, Russia's president discussed the crisis with senior officials and oil executives. And in public remarks, he was unusually frank. You're well aware that problems persist for both motorists and businesses, he told the meeting.

Smoke rises from Crimea Bridge on Monday. The Ukrainian army is pounding supply routes and striking energy facilities across Crimea. Warsaw - For Yulia, a 23-year-old resident of Crimea, nights have become sleepless due to increased Ukrainian drone attacks on the peninsula annexed by Russia in 2014. Kyiv's army is pounding supply routes and striking energy facilities across the Black Sea territory -- a campaign it sees as fair retribution for Moscow's daily barrages of Ukrainian cities, and one that it hopes will turn the tide of the four-year war in its favor. On Thursday, the Moscow-installed governor of Crimea announced power cuts across the peninsula, which despite the war had been a popular holiday destination for Russians. In a time of both misinformation and too much information, quality journalism is more crucial than ever.

Is the war entering a new phase? Ukrainian strikes on Russian-occupied Crimea have triggered power outages in its largest city, Sevastopol, according to statements from both sides, as Kyiv intensifies attacks on the peninsula Moscow annexed in 2014. Crimea has been forced to suspend fuel sales to the public as Ukraine's army targets Russian logistics to the region and has hit a series of oil refineries and depots across southern Russia that provide supplies. "The enemy is once again striking treacherously, attempting to deprive us of normal living conditions and sow panic," he posted. He said some areas of the city - where temperatures are approaching 30 degrees Celsius (86 degrees Fahrenheit) - would be without power until at least Wednesday evening.

Russian troop build-up threatens city seen as key to seizing Ukraine's Donbas Russian troops have infiltrated the strategic city of Kostyantynivka in eastern Ukraine and are now trying to surround it. The entire city is now effectively in a grey zone, no longer controlled by anyone, Ukrainian soldiers have told the BBC. They get into areas behind our backs and in urban conditions it's extremely difficult to push them out, says a Ukrainian drone pilot who operates in that area and prefers to remain anonymous. Kostyantynivka is a gateway to the rest of the Donbas region. If it falls, Russian forces would be able push towards Ukraine's last remaining strongholds in the east, the cities of Kramatorsk and Sloviansk, and move closer to seizing Donbas completely, one of the Kremlin's key objectives in this war.

Ukraine said it carried out an overnight drone strike on the Kirovske airfield in Crimea and claimed that multiple Russian helicopters and an air defence system were destroyed in the strike. According to a Ukraine Security Service (SBU) statement, the drones targeted areas where Russian aviation units, air defence assets, ammunition depots and unmanned aerial vehicles were located. The agency claimed that Mi-8, Mi-26, and Mi-28 helicopters, as well as a Pantsir-S1 missile and gun system were destroyed. "Secondary detonations continued throughout the night at the airfield," the SBU said, calling the strike part of broader efforts to disrupt Russian aerial operations. "The enemy must understand that expensive military equipment and ammunition are not safe anywhere – not on the line of contact, not in Crimea, and not deep in the rear."

Russia is vowing Thursday to repair the warplanes damaged by Ukraine in a massive drone attack earlier this week, with an official claiming they were "not destroyed but damaged." The comments from Russian Deputy Foreign Minister Sergey Ryabkov come after Ukraine said its forces destroyed 40 of Russia's most powerful bomber jets and surveillance planes in "Operation Spider's Web," a series of coordinated drone strikes Sunday penetrating deep into Russian territory. "As the defense ministry said, these aircraft were not destroyed but damaged. They will be repaired," Ryabkov was quoted telling Russia's state-run TASS news agency. However, satellite images of Russian airfields show extensive damage to the planes.

Kyiv, Ukraine – Finishing a cigarette with a final deep puff outside a hospital building in central Kyiv, a wounded Ukrainian drone operator sums up Russian President Vladimir Putin's readiness to end the Ukraine war along the current front lines. "Don't trust these leaks, the … vampire is just dragging the talks out," Arseny, a 31-year-old recovering from a cranial wound that left him blind in one eye, told Al Jazeera while standing near a blossoming apple tree. He referred to a Financial Times report on Tuesday that suggested that Putin could "relinquish" Moscow's claims on four partly-occupied Ukrainian regions. In September 2022, seven months after Russia's full-scale invasion of Ukraine began, Moscow recognised the regions as part of Russia even though it did not fully control them – and began losing some occupied areas within weeks. In return for the Kremlin's concession, the US may recognise Crimea, a Black Sea peninsula Moscow annexed in 2014, as part of Russia, and "acknowledge" the Kremlin's de facto control over the four regions' occupied parts, the Financial Times claimed, citing officials familiar with the talks.

Large language models excel at creative generation but continue to struggle with the issues of hallucination and bias. While retrieval-augmented generation (RAG) provides a framework for grounding LLMs' responses in accurate and up-to-date information, it still raises the question of bias: which sources should be selected for inclusion in the context? And how should their importance be weighted? In this paper, we study the challenge of cross-lingual RAG and present a dataset to investigate the robustness of existing systems at answering queries about geopolitical disputes, which exist at the intersection of linguistic, cultural, and political boundaries. Our dataset is sourced from Wikipedia pages containing information relevant to the given queries and we investigate the impact of including additional context, as well as the composition of this context in terms of language and source, on an LLM's response. Our results show that existing RAG systems continue to be challenged by cross-lingual use cases and suffer from a lack of consistency when they are provided with competing information in multiple languages. We present case studies to illustrate these issues and outline steps for future research to address these challenges. We make our dataset and code publicly available at https://github.com/manestay/bordIRlines.

One person has been killed and others wounded in a Ukrainian drone attack on a ferry at port in southern Russia, the regional governor has said. Krasnodar governor Veniamin Kondratyev said the ferry had caught fire at Port Kavkaz but there was no risk of it spreading. The port lies a few kilometres from the Kerch bridge, which enables road and rail travel between Russia and the Crimean peninsula, which Russia illegally annexed in 2014. "Unfortunately there are injured and dead among the crew and port staff," Mr Kondratyev said. He added that emergency services were on the scene.