Ukraine has carried out large-scale drone strikes against four airbases deep inside Russia, destroying multiple combat planes, according to a source in the Ukrainian Security Service (SBU).

A truck pulled in, and drones flew out of it.” From an airbase near Murmansk, in Russia’s far north, came similar stories: “The driver’s running around...drones are flying from his truck toward the base.

Ukrainian President Volodymyr Zelenskyy said he was sending a Ukrainian delegation to Istanbul for another face-to-face with Russian representatives.

The Russian Defense Ministry in a statement to TASS News Agency said: "Today, the Kiev regime staged a terror attack with the use of FPV drones on airfields in the Murmansk, Irkutsk, Ivanovo, Ryazan, and Amur Regions. All terror attacks on military airfields in the Ivanovo, Ryazan, and Amur Regions were repelled."

The International Air Transport Association said on Sunday it expects the amount of sustainable aviation fuel produced to double in 2025 to reach 2 million tonnes, representing 0.7% of airlines' fuel consumption.

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