Russia said on Friday it had conducted large-scale tests of new laser-based systems to defend against drones. A government statement described the new technology as "promising" and said it had been tested against various types of drone in different weather conditions.

At least 10 Ukrainian drones were shot down on their approach to Moscow overnight into Sunday morning, according to the city's mayor.

Ukraine's president says a new prisoner exchange with Russia is ongoing and will take days, as both sides continue launching hundreds of attack drones.

Ukraine’s drone strike deep inside Russian territory left Kremlin officials angry and alarmed over the sudden vulnerability of a nuclear-capable air fleet far from the battlefield, according to people close to senior officials in Moscow.

To date, Kyiv has confirmed that 25 of the bombers have been damaged or destroyed in Operation Spiderweb, that was over one year in the planning.