Thirty-two Ukrainian drones have been detected over Russia, Moscow officials said, a day after an 18-hour aerial barrage across Ukraine killed at least 32 civilians.

Drones were seen in the skies over Russia’s Moscow, Bryansk, Oryol, and Kursk regions, the country’s defence ministry said in a statement.

It did not report any casualties and said all of drones were destroyed by air defences.

Russian drone strikes against Ukraine also continued, with the General Staff of the Ukrainian Armed Forces reporting that 10 Shahed drones had been shot down across the Kherson, Khmelnytskyi, and Mykolaiv regions on Saturday.

Cities across western Russia have come under regular attack from drones since May, with Russian officials blaming Kyiv.

Ukrainian officials never acknowledge responsibility for attacks on Russian territory or the Crimean peninsula, but larger aerial strikes against Russia have previously followed heavy assaults on Ukrainian cities.

Moscow’s forces launched 122 missiles and dozens of drones across Ukraine on Friday, an onslaught described by one air force official as the biggest aerial barrage of the war.

At least 144 people were wounded and an unknown number were buried under rubble in the assault, which damaged a maternity hospital, apartment blocks and schools.

Western officials and analysts recently warned that Russia had limited its cruise missile strikes for months in an apparent effort to build up stockpiles for massive strikes during the winter, hoping to break the Ukrainians’ spirit.

Fighting along the front line is largely bogged down by winter weather after Ukraine’s summer counter-offensive failed to make a significant breakthrough along the 620-mile line of contact.

After the latest Russian assault, shelling continued across eastern and southern Ukraine and in Russia’s border regions. One man was killed by a missile in a home in Russia’s Belgorod region late on Friday, regional head Vyacheslav Gladkov wrote on social media.

Another four people were injured, including a 10-year-old child, he added.

Russia’s aerial attacks have also sparked concern for Ukraine’s neighbours.

Poland’s defence forces said on Friday that an unknown object had entered the country’s air space before vanishing from radars, and that all indications pointed to it being a Russian missile.

Speaking to Russian state media outlet RIA Novosti on Saturday, Andrei Ordash, a Russian representative in Poland, said: “Until concrete evidence is presented, we will not give any explanations, because these accusations are unsubstantiated.”