Ukraine has launched 35 drones against broad areas of Russia, sparking a brief fire at an oil refinery, targeting Moscow and disrupting electricity in border areas, Russia has claimed on the final day of the country's presidential vote.
Moscow accuses Kyiv of election sabotage with its days of strikes on Russian infrastructure, one of the most sweeping air operations on Russian territory since President Vladimir Putin ordered the invasion of neighbouring Ukraine two years ago.
Putin, all but certain to win re-election, has vowed to punish Ukraine for the attacks.
Ukraine's President Volodymyr Zelenskiy thanked his military forces and intelligence for new "long-range capabilities" in his nightly video address on Saturday, without mentioning the reported intensified attacks by his nation's forces.
Reuters could not independently verify the reports.
The Russian defence ministry posted on the Telegram messaging app on Sunday that 17 drones were destroyed over the southern Russian region of Krasnodar, four over the Moscow region and the rest over six other regions.
"The drones were neutralised, but a fire broke out as a result of the fall of one of the devices," the operational headquarters of the Krasnodar region in southern Russia said on Telegram.
The fire at the Slavyansk refinery in Krasnodar was extinguished and there were no casualties as a result of the fire, although preliminary information indicated one person had died of a heart attack, the administration said.
Roman Siniagovskyi, head of the Slavyansk administrative district, said on Telegram refinery workers were evacuated and there was no threat to nearby populated areas from the incident.
The Slavyansk refinery, some 70km north of Krasnodar, processes about 4.5 million metric tons of crude a year, producing fuel mainly for exports, but also selling some gasoline on the domestic market.
Moscow Mayor Sergei Sobyanin said there were no casualties or damage reported from the drones shot down over three districts near Moscow.
North of Moscow, four drones were destroyed over the Yaroslavl region, with no damage or injuries reported, Governor Mikhail Yevrayev said on Telegram.
In the border region of Belgorod, an attack by four Ukraine-launched drones damaged electricity and gas lines in one village, Governor Vyacheslav Gladkov said.
Russia's defence ministry said Russian forces also shot down 12 rockets launched from Ukraine towards the Belgorod region on Sunday.
As Russia was facing attacks from Ukraine, Kyiv's military said on Sunday that Russian air attacks had damaged agricultural enterprises and destroyed several industrial buildings in the Black Sea port of Odesa overnight.
Russia launched 16 drones and seven missiles, Ukraine's air force posted on the Telegram messaging app.
Fourteen drones were destroyed over the Odesa region.
It was not immediately clear what happened to the two drones that were not destroyed or whether the missiles hit their targets.
The air force said the missiles targeted Ukraine's Kharkiv, Donetsk and Chernikhiv regions.
Reuters could not independently verify the reports.
The south command of Ukraine's armed forces, whose area includes Odesa, said two agricultural enterprises were damaged in Odesa district.
"Unfortunately, it was not possible to avoid getting hit," the command said on Telegram.
"Fires broke out there, industrial buildings were destroyed.
"Fires were extinguished promptly - people were not injured."
It was not immediately clear whether the damage was caused by falling drone debris or drones that were not downed.
with Reuters
