Special forces reportedly launched assault on Russian airfield about 400 miles from Ukrainian border

Ukrainian special forces claim to have damaged two fighter jets in a night-time raid on an airfield deep inside Russia as Kyiv sought to disrupt Vladimir Putin’s steady advances on the frontline.

A week after the spectacle of Operation Spiderweb, when drones struck the Kremlin’s nuclear-capable bombers, the general staff of the Ukrainian army claimed a fresh success.