A Ukrainian security official says a drone attack has destroyed more than 40 Russian planes deep in Russia’s territory.

Ukrainian drones hit several Russian strategic airfields, including the Belaya military base deep in eastern Siberia, while Moscow launched one of its longest drone and missile attacks against Kyiv, escalating tensions ahead of crucial peace talks this week.

Ukrainian negotiators at talks scheduled for June 2 in Istanbul will present to the Russian side a proposed roadmap for reaching a lasting peace settlement, according to a copy of the document seen by Reuters.

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

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.

(Reuters) -Two bridges collapsed in different Russian regions bordering Ukraine, derailing trains and killing at least seven people and injuring dozens, Russian authorities said early on Sunday, while a Russian politician called Kyiv a "terrorist enclave".

At least seven people were killed after Russian officials said “illegal interference” caused a bridge to collapse and a train to derail in Russia.

Ilia’s mother died in the siege of Mariupol and officials in Russia put him up for adoption — until his grandmother traveled into Russia to bring him home.