A significant fire broke out at Somerset House in central London, involving up to 125 firefighters and 20 fire engines. The blaze, which started around noon, caused considerable smoke and disruption, with traffic in the area impacted. The fire is concentrated on the building's roof, and the cause remains unknown. All staff and visitors have been reported safe, but the site has been closed to the public. Somerset House, a historic Renaissance building known for hosting events and cultural activities, has had its firefighting efforts supported by drones and 32-meter ladders. Emergency services are working to control the fire, and the public is advised to avoid the area.