US President Donald Trump has expressed optimism over the ongoing Russia-Ukraine peace negotiations in Abu Dhabi, saying both countries are tired of fighting and that diplomatic efforts could help bring the prolonged conflict to an end.

Ukrainian drones reportedly struck Russia's Kinef oil refinery in the Leningrad region, triggering explosions and fires. Moscow claimed its air defences intercepted 81 UAVs. The attack comes amid escalating strikes on energy infrastructure and ahead of US-mediated Russia-Ukraine talks in Abu Dhabi