Ukraine launched a massive drone strike deep into Russia, hitting airbases and destroying over 40 bombers in its longest-range operation since the war began, according to officials.

Ukraine security service sources tell BBC bombers "are burning en masse" - as Russia confirms Kyiv's drone attack.

With 41 military aircraft impacted, the Ukrainian drone attack was described by some commentators as Russia's "Pearl Harbor." The attack on Pearl Harbor in December 1941 was a surprise air raid by Japan on the U.S. during World War II. Kyiv's assault follows ground advances by Moscow troops in recent days in Ukraine's Sumy border region.

By making harsh, uncompromising demands in peace talks with Ukraine while continuing to pummel it with waves of missiles and drones, Russian President Vladimir Putin is sending a clear message: He will only accept a settlement on his terms and will keep fighting until they’re met.

Two bridges have collapsed in Russia’s western regions bordering Ukraine, killing multiple people and injuring dozens, authorities said.

Two bridges have collapsed, causing trains to derail, in separate incidents within Russia, which Vladimir Putin's officials have blamed on "interference", a likely reference to Ukrainian saboteurs.At least seven people were killed and 30 suffered injuries after a bridge collapsed and a train derailed in Russia's Bryansk region that borders Ukraine,

A claim that President Vladimir Putin 's helicopter faced a combat incident during his visit to the Kursk region was concocted by Russia's authorities, it has been reported. Russia's Defense Ministry said that during Putin's trip to the border region where Kyiv previously staged an incursion, his aircraft came under fire from Ukrainian drones.