A mobile radar installation is positioned near the strait between Denmark and Sweden on Friday. COPENHAGEN - Denmark will ban all civilian drone flights across the country over the coming days to ensure security as Copenhagen hosts an EU summit gathering heads of government, the transport ministry said Sunday. Mysterious drone sightings across Denmark since Sept. 22 have prompted the closure of several airports, with Denmark hinting at possible Russian involvement, though Moscow denies the charge. Drones were observed over Danish military sites Saturday night for the second straight day, Denmark's army said on Sunday. In a time of both misinformation and too much information, quality journalism is more crucial than ever.

Multi-robot target tracking is a fundamental problem that requires coordinated monitoring of dynamic entities in applications such as precision agriculture, environmental monitoring, disaster response, and security surveillance. While Federated Learning (FL) has the potential to enhance learning across multiple robots without centralized data aggregation, its use in multi-Unmanned Aerial Vehicle (UAV) target tracking remains largely underexplored. Key challenges include limited onboard computational resources, significant data heterogeneity in FL due to varying targets and the fields of view, and the need for tight coupling between trajectory prediction and multi-robot planning. In this paper, we introduce DroneFL, the first federated learning framework specifically designed for efficient multi-UAV target tracking. We design a lightweight local model to predict target trajectories from sensor inputs, using a frozen YOLO backbone and a shallow transformer for efficient onboard training. The updated models are periodically aggregated in the cloud for global knowledge sharing. To alleviate the data heterogeneity that hinders FL convergence, DroneFL introduces a position-invariant model architecture with altitude-based adaptive instance normalization. Finally, we fuse predictions from multiple UAVs in the cloud and generate optimal trajectories that balance target prediction accuracy and overall tracking performance. Our results show that DroneFL reduces prediction error by 6%-83% and tracking distance by 0.4%-4.6% compared to a distributed non-FL framework. In terms of efficiency, DroneFL runs in real time on a Raspberry Pi 5 and has on average just 1.56 KBps data rate to the cloud.

Can Ukraine restore its pre-war borders? Why are Tomahawk missiles for Ukraine a'red line' for Russia? Is Russia testing NATO with aerial incursions in Europe? Russian forces killed four people, including a 12-year-old girl, and injured 13 in an attack on Ukraine's capital, Kyiv, on Sunday night, Tymur Tkachenko, the head of Kyiv's military administration, wrote in a post on Telegram. Those killed also included staff and patients at a cardiology centre, Tkachenko added.

Denmark has barred civilian drones from its airspace before a European Union Summit, following reported sightings of drones at several military locations overnight on Saturday. The Nordic country has been on alert following a string of drone incidents over the past week, which have led to the closure of several airports. The ban will remain in place from Monday through Friday of the coming week, when Denmark, which holds the rotating presidency of the EU for the second half of this year, will be hosting European leaders. In a statement earlier in the day, the country's Ministry of Defence said it had "several capacities deployed" after the drone sighting, without elaborating on the deployment, the number of drones or the locations. The latest incident comes a day after the NATO military alliance announced it was upgrading its mission in the Baltic Sea with an air defence frigate in response to the drone incursion in Denmark. In a statement sent to the Reuters news agency, NATO said it would "conduct even more enhanced vigilance with new multi-domain assets in the Baltic Sea region".

Can Ukraine restore its pre-war borders? Why are Tomahawk missiles for Ukraine a'red line' for Russia? Is Russia testing NATO with aerial incursions in Europe? Heavy Russian drone attack kills at least four in Ukraine's capital Kyiv NewsFeed Heavy Russian drone attack kills at least four in Ukraine's capital Kyiv Russia has launched a heavy attack on Ukraine with hundreds of kamikaze drones hitting residential buildings in Kyiv. At least four people have been killed, including a 12-year-old girl.

Can Ukraine restore its pre-war borders? Is Russia testing NATO with aerial incursions in Europe? At least 4 killed in major Russian drone, missile attack on Ukraine's Kyiv At least four people have been killed, including a 12-year-old girl, and 10 others wounded as Russia launched a major drone and missile attack on the Ukrainian capital and the surrounding region. An air raid alert was in place over the Kyiv region early on Sunday, with the local military administration saying Russia was attacking with drones and missiles. Tkachenko wrote on Telegram that there were over 15 locations that had been damaged due to the barrage of attacks, including "drone strikes on multi-storey residential buildings".

Can Ukraine restore its pre-war borders? Is Russia testing NATO with aerial incursions in Europe? Poland has briefly closed part of its airspace southeast of capital Warsaw, citing "unplanned military activity", as Russia launches a new wave of strikes against Ukraine. The deployment on Sunday of Polish and allied aircraft in the country's airspace comes as the transatlantic security bloc NATO announced that it is upgrading its mission in the Baltic Sea in response to drone incursions in Denmark and reported drone sightings in Norway. In the latest incident, the Polish armed forces said it scrambled aircraft to ensure the security of its airspace after Russia launched strikes on Ukraine.

Can Ukraine restore its pre-war borders? Is Russia testing NATO with aerial incursions in Europe? Russia will give'decisive response' if provoked by the West, says Lavrov Russia's Foreign Minister Sergey Lavrov has warned NATO and the EU that "any aggression against my country will be met with a decisive response". Speaking at the United Nations General Assembly (UNGA) in New York on Saturday, Lavrov insisted that Moscow had no plans to attack the West, but that it was prepared to act if provoked. "Russia is testing their ability to defend themselves and trying to influence societies so people begin to ask: 'If we can't protect ourselves, why should we keep supporting Ukraine?'. This is intended to reduce assistance to Ukraine, especially ahead of winter," he wrote on X. Moscow continues to deny violating Polish airspace with drones and Estonian airspace with fighter jets this month.

Israel's justification for bombing a Khan Younis hospital in southern Gaza, claiming it targeted a Hamas camera, is false, according to an investigation by the news agency Reuters. Israeli forces planned the August 25 attack on Nasser Hospital using drone footage that, a military official said, showed a Hamas camera that was the target of the strike. But a Reuters review of visual evidence and interviews with witnesses established that the camera in question actually belonged to the news agency and had long been used by one of its own journalists. Their deaths bring the number of journalists killed in Israeli attacks on Gaza to more than 200 since the genocidal war began nearly two years ago. A day after the hospital strike, the army said troops had fired on a "suspicious" camera draped in cloth, claiming it was operated by Hamas.

Can Ukraine restore its pre-war borders? Is Russia testing NATO with aerial incursions in Europe? Unidentified drones have flown over Denmark's military sites, including its biggest base, the latest in a slew of incursions near airports and critical infrastructure this week, which officials have called a "hybrid attack" and hinted at possible Russian involvement. "The Danish Defence can confirm that drones were observed at several of the Danish Defence's locations last night. Several capabilities were deployed," an army spokesperson said on Saturday, without specifying where the drones were observed.