The FBI has released new footage showing the suspect in the killing of US activist Charlie Kirk running across a roof - from where the fatal shot was fired - before dropping to the ground and crossing a road. As the authorities continue their search, BBC Verify's Nick Beake has been looking at the footage and what we know about his escape. Watch: Key moments from RFK Jr's heated Senate hearing The US health secretary faced questions on Covid deaths and vaccines a week after firing the head of the Centers for Disease Control and Prevention. The group said they are making their own list of Jeffrey Epstein's associates and called for the release of all files related to the investigation. The molten magma streamed down one of the world's most active volcanoes and put on another fiery show on the Island of Hawaii.

'Looks like a toy, but it's real': BBC examines a downed Russian drone At least three Russian drones were shot down in Poland's airspace during attacks on Ukraine, the Polish prime minister said on Wednesday. The BBC's Sarah Rainsford has been looking at the exact type of Russian drone that flew into Poland, and is proving a massive challenge for Ukraine's territorial defence forces. The BBC's Sarah Rainsford says Sunday's attack caused a huge amount of damage. One of Kyiv's main government buildings was hit in overnight missile and drone strikes by Russia. 'The hit was very hard': Eyewitness in second carriage shares video of crash moment The incident in Lisbon's funicular has left 16 dead and multiple injured.

Utah authorities have released CCTV footage showing the Charlie Kirk shooting suspect fleeing the scene at Utah Valley University. The video shows a figure dressed in black running across a roof before dropping down to the ground and fleeing towards a wooded area. Authorities say the suspect was wearing Converse shoes, sunglasses and a distinctive black T-shirt with an American flag and an eagle. Watch: Key moments from RFK Jr's heated Senate hearing The US health secretary faced questions on Covid deaths and vaccines a week after firing the head of the Centers for Disease Control and Prevention. The group said they are making their own list of Jeffrey Epstein's associates and called for the release of all files related to the investigation.

Video understanding has advanced rapidly, fueled by increasingly complex datasets and powerful architectures. Yet existing surveys largely classify models by task or family, overlooking the structural pressures through which datasets guide architectural evolution. This survey is the first to adopt a dataset-driven perspective, showing how motion complexity, temporal span, hierarchical composition, and multimodal richness impose inductive biases that models should encode. We reinterpret milestones, from two-stream and 3D CNNs to sequential, transformer, and multimodal foundation models, as concrete responses to these dataset-driven pressures. Building on this synthesis, we offer practical guidance for aligning model design with dataset invariances while balancing scalability and task demands. By unifying datasets, inductive biases, and architectures into a coherent framework, this survey provides both a comprehensive retrospective and a prescriptive roadmap for advancing general-purpose video understanding.

Don't worry too much about planet-warming emissions, the US Energy Secretary has told the BBC, because within five years AI will have enabled the harnessing of nuclear fusion - the energy that powers the sun and stars. Chris Wright told me in an interview that he expected the technology to deliver power to electricity grids around the world within eight to 15 years and that it would rapidly become a big driver of greenhouse gas reductions. His claims will likely surprise even enthusiasts for the technology. Harnessing the energy released when atoms fuse together could produce vast amounts of low carbon energy but most scientists believe commercial fusion power plants are still a long way off. With artificial intelligence and what's going on at the national labs and private companies in the United States, we will have that approach about how to harness fusion energy multiple ways within the next five years, said Mr Wright.

Dozens of political prisoners have been freed from Belarusian prisons as part of a deal between authoritarian leader Alexander Lukashenko and US President Donald Trump. Fifty-two prisoners have been released, including trade union leaders, journalists and activists, but more than 1,000 political prisoners remain in jail. In exchange, the US has said it will relieve some sanctions on Belarusian airline Belavia, allowing it to buy parts for its airlines. The prisoner release came on the eve of joint military exercises involving Belarus and close ally Russia, and after what neighbouring Poland called an unprecedented Russian drone incursion into its airspace. Poland is closing its borders with Belarus because of the Zapad-2025 drills, which last until Tuesday.

The image was taken during the G5 storm, the most extreme level of geomagnetic storm, in May. The reds were a level of intensity the photographer had never experienced. Breakthroughs, discoveries, and DIY tips sent every weekday. When the biggest geomagnetic storm in 20 years hit Earth in May 2024, photographer Kavan Chay was in Tumbledown Bay, New Zealand. Armed with a Nikon Z 7 astro-modified camera, Chay captured a absolutely spectacular shot (seen above) of the vibrant aurora that resulted from the G5-level storm.

Nato members are sending troops, artillery, and air defence systems to secure its eastern flank after what Poland called an unprecedented Russian drone incursion into its airspace. In the early hours of Wednesday, three Russian drones were shot down after crossing into Polish airspace. Other drones crashed to the ground and were later found across eastern Poland. Poland has requested a UN Security Council session about the incident, which will take place on Friday at 19:00 GMT. In response to the drone incursion, the Netherlands and the Czech Republic said they would send defences to Poland, while Lithuania would receive a German brigade and greater warning of Russian attacks on Ukraine that could cross over.

See Kathmandu's destroyed and barricaded streets after violence There's a real sense of tension in Kathmandu, the BBC's Samira Hussain says, after protests against corruption spiralled into arson and violence. Nepal's army deployed patrols on the streets, as the Himalayan nation reeled from its worst unrest in decades. The prime minister quit and politicians' homes were vandalised, and government buildings and parliament were torched. The streets of Nepal's capital have a heavy military presence, with barricades erected outside parliament and the supreme court. The military parade was attended by world leaders including Vladimir Putin and Kim Jong Un and showcased China's new weapons.

Hundreds of people had gathered to hear right-wing activist Charlie Kirk speak at the Utah Valley University on Wednesday. The conservative activist and influential Trump ally was shot and killed while speaking. BBC Verify has been piecing together a timeline of how the incident unfolded. 'I would feel more worried' - Chicagoans on Trump's plan to deploy troops President Donald Trump says he will send the National Guard to Chicago to help fight crime but has not specified when that could occur. Officers in Michigan were responding to reports of a stolen vehicle, when they deployed a grappler device around one of the car's tires.