Ukrainian President Volodymyr Zelensky has warned that "war" was coming to Russia after three Ukrainian drones were downed over Moscow.
"Gradually, the war is returning to the territory of Russia - to its symbolic centres and military bases, and this is an inevitable, natural and absolutely fair process," Mr Zelensky said on a visit to the western Ukrainian city of Ivano-Frankivsk.
"Ukraine is getting stronger," he added, warning however that the country should prepare for new attack on energy infrastructure in winter.
"But we must be aware that, just as last year, Russian terrorists can still attack our energy sector and critical facilities this winter," Mr Zelensky said.
He added that preparations for "all possible scenarios" were discussed in Ivano-Frankivsk.
Mr Zelensky spoke after three Ukrainian drones were downed over Moscow early today, the Russian defence ministry said.
The attack damaged two office towers and briefly shut an international airport.
Separately, Russia said today its forces had thwarted a Ukrainian attempt to attack Russia-annexed Crimea with 25 drones overnight.
The attacks reported today were the latest in a series of recent drone assaults, including on the Kremlin and Russian towns near the border with Ukraine, that Moscow has blamed on Kyiv.
The attacks on Moscow come several weeks into a Ukrainian counter-offensive to claw back territory captured by Russia since large-scale hostilities erupted in February 2022.
Russia's foreign ministry has said such attacks "would not be possible without the help provided to the Kyiv regime by the US and its NATO allies".
On Friday, Russia said it had intercepted two missiles over its southern Rostov region bordering Ukraine, with at least 16 people wounded by debris falling on the city of Taganrog.
Shortly after, it said it had downed a second S-200 missile near the city of Azov, with debris falling in an unpopulated area.
On the other side of the border, a Russian strike killed two people in the southern city of Zaporizhzhia yesterday, authorities there said.
At least one civilian was killed in a missile attack on the northeastern city of Sumy, according to Ukrainian national police, who added that there were five injured.
Putin says Russia does not reject talks with Ukraine
Russian President Vladimir Putin has said that an African initiative could be a basis for peace in Ukraine but that Ukrainian attacks made it hard to realise.
He was speaking at a press conference after meeting African leaders in St Petersburg on Friday and hearing their calls for Moscow to move ahead with their plan.
"There are provisions of this peace initiative that are being implemented," he said. "But there are things that are difficult or impossible to implement."
Reuters reported in June that African mediation in the conflict could begin with confidence-building measures followed by a cessation of hostilities agreement accompanied by negotiations between Russia and the West.
Mr Putin said that one of the points in the initiative was a ceasefire.
"But the Ukrainian army is on the offensive, they are attacking, they are implementing a large-scale strategic offensive operation ... We cannot cease fire when we are under attack."
On the question of starting peace talks, he said: "We did not reject them ... In order for this process to begin, there needs to be agreement on both sides."
Mr Zelensky has rejected the idea of a ceasefire now that would leave Russia in control of nearly a fifth of his country and give its forces time to regroup after 17 grinding months of war.
Meanwhile, Mr Putin reviewed a parade of warships and nuclear submarines in his native St Petersburg this morning and announced that the Russian navy would receive 30 new ships this year.
Forty-five ships, submarines and other vessels took part in Russia's annual Navy Day event, a traditional show of military might which takes place in the Gulf of Finland and on the River Neva in St Petersburg.
Around 3,000 navy personnel also took part in a parade on land, the Kremlin said.
Elsewhere, Pope Francis called on Russia to revive the Black Sea grain deal, through which Moscow had allowed Ukraine to export grain from its seaports despite the war.
"I appeal to my brothers, the authorities of the Russian Federation, so that the Black Sea initiative may be resumed and grain may be transported safely," Francis said during his Angelus message.
