Ukraine has launched another daring drone strike deep inside Russian territory — this time hitting the Syzran oil refinery in the Samara region, a facility critical to Russia’s fuel supply and military logistics.

U.S. President Donald Trump on Monday said Russian President Vladimir Putin told him Ukraine tried to attack Putin's residence in northern Russia, which Kyiv has denied.

Both leaders reported progress on two of the most contentious issues in peace talks - security guarantees for Ukraine and the division of eastern Ukraine’s Donbas region that Russia has sought to capt...