Ukraine launched a “large -scale” attack of drone deep into the Russian territory The prospects of ceasefire.
The Ukrainian security official, which spoken under anonymity, told the Associated Press that the attack took a year and a half to execute and personally subjected the president of Ukrainian Volodimir Zelensky.
Governor Igor Kobziev Region using Telegram/Maint via Reuters 
The operation was seen by drones transported in containers that carry trucks deep into the Russian territory, he said. Drones got into airfields, including the white air base in the Russian region, more than 2500 miles from Ukraine. For the first time, the Ukrainian drone was noticed in the region, local governor Igor Kobzev said, emphasizing that he did not pose a threat to civilians.
While the White House press -secretary refused to comment on the attack, CBS News reported that the White House did not know what it was going on Sunday.
The drone attack occurred when Kiev announced that a Russian military strike killed at least 12 soldiers in the army. The Ukrainian Air Force said that 472 Russian drones were launched by the biggest number after a full-scale invasion of three years ago.
Russian troops also launched seven rockets near the drones, said Yuri Ignatius, head of the Ukrainian Air Force Communications Department.
The training unit is located behind the active line of the front line 620 miles, where Russian intelligence and strikes can strike.
Meanwhile, the explosions made two bridges collapse and thwarted two trains in Western Russia for one night, officials said on Sunday, not to mention what caused the explosions. In one of the incidents, seven people were killed and dozens were injured.
Russian Emergency Department via Reuters 
The first bridge, in the Braian region on the border with Ukraine, fell apart on the top of the passenger train, which led to the victims. The train driver was among the killed, state -owned Russian railways said.
A few hours later, the officials said the second train left the rails when the bridge under it collapsed in the neighboring region of Kursk, which also bordered on Ukraine.
On Sunday, Zelensky stated that he was sending a Ukrainian delegation to Istanbul, led by Defense Minister Rustem Merov for another face to face Russian representatives.
“We do everything to defend our independence, our state and our people,” he said.
Zelensky said the priorities for the meeting include “complete and unconditional ceasefire” and the return of prisoners and abducted children.
Russian news agencies said a Russian delegation to Istanbul had headed for talk on Sunday.
Ukrainian officials previously called on the Kremlin to give the promised Memorandum posted its position After the war before the meeting. Moscow said it would share its memorandum during the negotiations.
and
He contributed to this report.