Ukrainian President Volodymyr Zelenskyy praised the 'brilliant operation' aimed at 'military targets' on Russian territory, after a Ukrainian security official said a drone attack destroyed more than 40 Russian planes deep in Russia’s territory. The attack on the eve of peace talks was part of a sharp ramping up of the three-year war. Meanwhile, Moscow said sabotage was to blame for two train derailments that left seven people dead

• Ukraine launches major drone attack on Russian bombers, security official says