Ukraine conducted a 'large-scale' drone attack on Russian military aircraft on Sunday, striking more than 40 warplanes thousands of kilometres from its own territory, a security official said. The claims could not be independently verified. But if confirmed, the attacks in Siberia would mark Ukraine’s most damaging drone strike of the war to date, amid an escalation in cross-border incursions before planned peace talks in Istanbul on Monday. Among the aircraft reportedly hit were Tu-95 and Tu-22 strategic bombers, which Russia uses to fire long-range missiles at Ukrainian cities

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