Heraldo de Madrid - Deadly Ukrainian strikes rock Russia as vote cements Putin's grip

Presidential polls opened this week but voting has been marred by a surge in fatal Ukrainian aerial attacks and a series of incursions into Russian territory by pro-Ukrainian sabotage groups.

Fresh bombardments Saturday prompted authorities to close schools and shopping centres in the Belgorod region bordering Ukraine.

Putin, who cast his vote online, has vowed a harsh response to the assaults and accused Ukraine of trying to "disrupt" his bid for another six-year mandate.

Belgorod governor Vyacheslav Gladkov said two residents had been killed and others wounded in shelling Saturday.

Throughout Saturday, Russia's defence ministry said it had downed rockets, missiles and drones over Belgorod and Kursk, another border region that has seen an uptick in attacks.

Kremlin spokesman Dmitry Peskov told state media the Russian leader was being "constantly briefed" by his military leaders on the situation at the border.

- Putin vows revenge -

Both Peskov and the defence ministry said Russian forces had fought off more attempted infiltrations by "Ukrainian militant sabotage and reconnaissance groups" overnight.

Kremlin proxy officials in the occupied Kherson region of southern Ukraine meanwhile said one person was killed and four wounded in a drone attack.

The border attacks were a concern for voters hundreds of kilometres away in the town of Sergiev Posad outside Moscow, famous for its ornate Orthodox monastery with golden onion domes.

Casting her ballot from home with the help of election officials going door-to-door, 87-year-old Inessa Rozhkova said she hoped the polls would bring an end to the conflict with Ukraine.

"Can you imagine how many people died? And now our border villages are suffering. We worry for them," she said.

In a nearby polling station at a vocational school, Elena Kirsanova, 68, came with her husband to vote for Putin.

"They try to scare us, but this is not a nation that can be intimidated," Kirsanova told AFP.

- 'Unites us' -

Putin, 71, has been in power since the last day of 1999 and is set to extend his grip over the country until 2030.

If he completes another Kremlin term, he will hold power longer than any Russian leader since Catherine the Great in the 18th century.

He faces no genuine competition in the vote, having barred two candidates who opposed the conflict in Ukraine.

The Kremlin has pitched the election as an opportunity for Russians to show they are behind Moscow's full-scale military campaign in Ukraine and Putin's anti-Western agenda.

"The actions of the West... unite the people of Russia more," 70-year-old voter Lyubov Pyankova told AFP on Saturday in Saint Petersburg, Putin's home city.

Voting was also taking place in parts of Ukraine occupied by Russian forces -- a move denounced as "illegal" and a "sham" by Kyiv and Western governments.

On Saturday, state media showed soldiers and election officials collecting ballots from elderly residents in Avdiivka, the frontline city destroyed by months of fighting before being captured by Russian forces last month.

- Oil facility ablaze -

Authorities accused at least two more Russians -- one in the central city of Yekaterinburg and in the western exclave of Kaliningrad -- of pouring green ink into ballot boxes, following a spate of arrests for similar acts and arson attacks a day earlier.

They face up to five years in prison under charges of obstructing election proceedings.

The substance being poured into the ballot boxes resembles zelyonka, a surgical antiseptic used previously by pro-Kremlin actors to douse on opposition politicians, including Navalny.

Russia's FSB security service also announced arrests of Russians it said were aiding Ukrainian forces or planning to carry out sabotage at military and transport facilities.

Ukrainian attacks have extended well beyond border regions with Kyiv's forces targeting oil facilities deep inside Russian territory.

The governor of the Samara region -- around 800 kilometres (500 miles) from the front lines -- said Saturday that Ukrainian drones had targeted two oil refineries, igniting a blaze at one of them.

French President Emmanuel Macron said in an interview with newspaper Le Parisien published Saturday that "at some point" Western allies might need to have ground operations in Ukraine to "counter Russian forces".

His earlier refusal to rule out troops on the ground drew anger from Germany and other European partners.

X.Villanueva--HdM