A spokesman for the Ukrainian Foreign Ministry said the Ukrainian delegation had arrived in Istanbul for talks with Russian officials and planned a meeting on Monday afternoon.

The two sides will hold a second round of direct peace talks since 2022, but how to end the war is far apart when battles increase.

After several days of uncertainty, whether Ukraine will participate, Volodymyr Zelenskyy The Minister of Defense said Rustem Umerov Meet Russian officials. The first round of negotiations a week ago produced the biggest prisoner exchange of war - but there was no consensus on how to stop the fight.

Our envoy said Keith KelloggAlthough it is obvious that Moscow and Kiev are still far apart after three years of full-scale attacks on Ukraine.

Russia's chief negotiator, presidential adviser Vladimir MedinskyThe Tass News Agency quoted Russia as saying that it had received a memorandum from Ukraine. Zelenskyy complained that Russia failed to provide a memorandum for its proposal.

In other news:

• Ukraine It destroyed billions of dollars worth of Siberia's Russian bombers, the longest attack on the war, said Sunday. Ukraine said in a spectacular claim that it damaged a $7 billion Russian plane parked thousands of kilometers (miles) on four air bases, with unverified video footage showing the plane engulfed by flames and black smoke. Sources from the Ukrainian Security Service (SBU) said the strikes hit 41 planes used to "blast Ukrainian villages."

• Several media outlets in Russia and Ukraine reported that Ukraine operates by launching drones on trucks near military airports deep in Russia. Ukrainian officials told the media that the operation (codenamed "spider web") has been prepared for more than 18 months.

• Zelenskyy praised the attack as "excellent operation" which was "specially targeted at military targets" and caused "real huge losses" for Russia. He said those who assisted the operation had been withdrawn from Russia on the eve of the attack and were safe. Russia said several "participants" had been arrested.

• Russian investigators said on Sunday they believe the "explosion" caused two bridges to collapse overnight, derailing, killing at least seven people and injuring dozens of people in the Kursk-Briansk border area.. The incident was considered terrorism. In Bryansk, bordering Ukraine, a road bridge collapsed on the railway line late Saturday and derailed, a passenger train heading to Moscow, killing at least seven people. Officials said a railway bridge near Kursk also collapsed overnight, derailing the freight train and injuring the driver. Kursk also borders Ukraine. Russian operator Russian Railways said that, in addition, Russian operator Russian Railways said a railway track in the Unecha-Zhecha area of ​​Russia's Bryansk region was damaged without casualties.

• Ukraine's army commander, one of the country's top positions, announced on Sunday that he was resigning, saying he felt "responsible" for the deaths of at least 12 soldiers who died in a Russian strike earlier that day. Major General Mykhailo Drapatyi has been in charge of the massive wartime army in Ukraine since November last year. "This is a step determined by my personal sense of responsibility for the tragedy on the 239th training ground, which led to the death of our soldiers," Drapatyi wrote on Facebook.

• Ukrainian President Volodymyr Zelenskyy. "This is not the first strike of Ukraine losing personnel. I called the meeting... to deal with this issue." "We need all combatants to defend Ukraine in the front." The Russian military issued a statement saying that its troops had fired a missile at the Ukrainian military "tent camp" in the DNIE Propetrovsk area in the central DNIE Propetrovsk area.