Wave of drone and missile strikes that wounded dozens was retaliation for ‘terrorist attack’, says Moscow

• Russia-Ukraine war – latest news updates

Moscow has said the wave of drone and missile strikes that wounded at least 28 people in Ukraine’s second-biggest city late on Saturday was launched in retaliation for the “terrorist attack” on the Russian border city of Belgorod earlier the same day that reportedly killed 24 people.

Ukraine’s national police said on Sunday that at least six Russian missiles had reached Kharkiv on Saturday night, injuring more than two dozen people and hitting 12 apartment buildings, 13 residential houses, a hotel and a kindergarten.

Russia launches overnight air assault targeting Kyiv, Ukraine says; Moscow reports 21 dead after Ukrainian strike on Belgorod

Russia launched a bombardment on Ukrainian regions in the hours leading into New Year’s Eve, targeting Kyiv and inflicting damage on residential areas of the city of Kharkiv, Ukrainian officials said. Ukraine’s air defence systems in the region surrounding Kyiv were engaged in repelling Russia’s drone attack, the military administration of the region said on Telegram.

The Kharkiv mayor, Ihor Terekhov, said the drone attack came in several waves, hitting residential buildings in the city centre and starting fires. “All relevant emergency services are already on the site. Information about potential casualties is being clarified.”

Ukraine carried out a series of strikes on the Russian border city of Belgorod, the day after an 18-hour aerial barrage across Ukraine killed at least 41 civilians. Russian officials said the shelling in the centre of Belgorod on Saturday killed 21 people, including three children, and injured 110 more. Ukrainian media – citing law enforcement agencies – said the attacks only hit military targets and were retaliation for Friday’s mass bombardment of Ukrainian cities.

The Belgorod attack came a day after Ukraine said a barrage of Russian missile strikes on several cities killed at least 40 people, wounding dozens more.

Russia experienced a sharp rise in the number of killed and wounded troops in 2023, due to “degradation” of military quality, according to the UK’s Ministry of Defence.

In its daily intelligence briefing, the MoD said the average daily number of Russian casualties (killed and wounded) had risen by almost 300 a day compared with 2022. “The increase in daily averages, as reported by the Ukrainian authorities, almost certainly reflects the degradation of Russia’s forces and its transition to a lower quality, high quantity mass army since the ‘partial mobilisation’ of reservists in September 2022.”

Moscow would not give an explanation for a missile in Polish airspace unless provided with “hard evidence” it was Russian, said Andrei Ordash, Russia’s chargé d’affaires in Poland, after being summoned to the Polish foreign ministry. Poland’s armed forces said an unknown airborne object, which they identified as a Russian missile, entered Polish airspace from the direction of Ukraine for less than three minutes. “Until hard evidence is provided, we will not give any explanations, because these accusations are unfounded,” Ordash said.

‘These accusations are unfounded,’ Kremlin official tells Russian media. This blog is now closed

• See all our Russia-Ukraine war coverage

Moscow’s aerial bombardment of Ukraine has left 32 dead, AP reports.

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

At least 30 killed and 160 wounded across Ukraine in what Kyiv calls biggest Russian air attack of war; Poland claims Russian missile entered its airspace

Russia launched a huge wave of missile strikes on Ukrainian cities, including the capital, in what Ukraine’s defence minister called the biggest air attack of the war. At least 30 civilians were killed and 160 injured in the strikes on residential buildings in Kyiv, Lviv, Kharkiv and other cities in the west and south on Friday morning. A shopping centre and maternity hospital were hit in the central city of Dnipro, Ukrainian officials said. In Odesa, three people were killed and another 26 injured, including two children and a pregnant woman, when three rockets hit residential buildings. Rescue operations were continuing in the cities.

The Ukrainian air force said it shot down 87 cruise missiles and 27 drones of a total 158 aerial “targets” fired by Russia. Kyiv’s defence minister, Rustem Umerov, said it was the “most massive air attack of this war”, which began in February 2022, and involved 18 strategic bombers. The army chief, Gen Valerii Zaluzhnyi, said infrastructure and industrial and military facilities had been targeted.

Volodymyr Zelenskiy said Russia launched about 110 missiles in the attack. “Today, Russia used nearly every type of weapon in its arsenal,” the Ukrainian president said on social media. “Russian terror must and will lose.”

Poland’s armed forces said an unknown airborne object, which they identified as a Russian missile, entered the country’s airspace from the direction of Ukraine for less than three minutes. “It was monitored by us on radars and left the airspace,” said Poland’s defence chief, Gen Wiesław Kukuła. The object penetrated about 40km (25 miles), Poland said, adding that Nato radar also confirmed the object left Polish airspace. The Russian charge d’affaires, summoned to the Polish foreign ministry, said Warsaw had provided no evidence of a missile entering its airspace.

At a hastily convened meeting of the UN security council, most council members – including the US, France and Britain – condemned the attacks. “Tragically, 2023 is ending as it began, with devastating violence against the people of Ukraine,” UN assistant secretary general Khaled Khiari said after briefing the council on the attacks.

Britain will send about 200 air-defence missiles to Ukraine after the Russian strikes, the UK defence minister said on Friday. Grant Shapps posted on X (formerly Twitter) that Britain was “moving rapidly to bolster Ukraine’s air defence in the wake of Putin’s murderous airstrikes”. The prime minister, Rishi Sunak, said on social media: “These widespread attacks on Ukraine’s cities show Putin will stop at nothing to achieve his aim of eradicating freedom and democracy.”

A Ukrainian strike on a residential building in the Russian city of Belgorod left one person dead, the regional governor said late on Friday. The attack killed one person and wounded four others, Vyacheslav Gladkov said, adding that the city’s water supply system was damaged. The Russian defence ministry said air defence systems destroyed a total of 13 missiles over the region, which borders Ukraine.

The US president, Joe Biden, demanded Congress “step up” and overcome divisions on sending aid to Ukraine, saying the massive Russian air attack demonstrated that the Kremlin hoped to “obliterate” the pro-western country. Biden said in a statement: “Unless Congress takes urgent action in the new year, we will not be able to continue sending the weapons and vital air defense systems Ukraine needs to protect its people. Congress must step up and act without any further delay.”

Ukrainian officials urged the country’s western allies to provide it with more air defences to protect itself against aerial attacks such as Friday’s. Their appeals have come as signs of war fatigue strain efforts to keep support in place.

Russia has suffered huge human and material losses in Ukraine and its army will emerge weakened from the conflict, a senior German military figure said in an interview published on Friday. Christian Freuding, who oversees the German army’s support for Kyiv, said: “The Russian armed forces will emerge from this war weakened, both materially and in terms of personnel.”

Poland’s defence chief says unidentified object entered airspace on Friday then disappeared from radar. This live blog is closed

• Poland reports airspace incursion as Russia launches huge strike on Ukraine

The US ambassador to Ukraine has shared a picture of her phone screen showing a number of critical air raid alert messages.

Bridget Brink said in a post on X:

This is what Ukrainians see on their phones this morning: and as a result, millions of men, women, and children are in bomb shelters as Russia fires missiles across the country.