At least four people have been killed in in Ukraine after a wave of Russian missile and drone strikes, regional officials have said, as Volodymyr Zelenskyy reported that Moscow had used a hypersonic missile to target Kyiv.
Two people were killed in the capital overnight, according to mayor Vitali Klitschko, while Kyiv's regional governor added two others were killed in surrounding districts.
Later, the Ukrainian president said Russia had used the Oreshnik intermediate-range ballistic missile (IRBM), which is capable of carrying nuclear or conventional warheads, in the attack.
Read more: What we know about the Oreshnik
Mr Zelenskyy added there were at least 83 people injured in the strikes, which involved 600 drones and 90 missiles, mainly targeting Kyiv.
He also said that Russia had struck the city of Bila Tserkva in the Kyiv region with the Oreshnik.
The president said on Saturday that US and Western intelligence were suggesting Russia was planning to use the hypersonic missile in the strikes overnight.
The Russian Defence Ministry later acknowledged it used the hypersonic missile in the strikes, along with its Iskander,
Kinzhal and Zircon missiles.
It said the strikes were in response to Kyiv's attacks on civilian targets in Russia. On Saturday, Russian officials said 18 people were killed in a Ukrainian drone strike on a student dorm in the Russian-controlled Luhansk region.
Ukraine's military denied responsibility for the attack, saying it had struck an elite drone command unit in the area.
See more from Sky News:
US-Iran deal 'soon', says Trump
France bans Israeli minister
Kyiv military administration head Tymur Tkachenko said on Telegram that damage was recorded across 40 locations across several districts of the city, including residential buildings.
Mr Klitschko added that a school building being used as shelter by residents was damaged, while local authorities reported supermarkets and warehouses across the city were also damaged.
Putin: Oreshnik 'like a meteorite'
Russia last launched an Oreshnik against Lviv on 8 January as part of an intensive overnight attack on western, central and southeastern Ukraine, comprising 278 Russian missiles and drones.
Vladimir Putin has previously said that the Oreshnik streaks at 10 times the speed of sound, or Mach 10, and is capable of destroying underground bunkers "three, four or more floors down".
The weapon travels "like a meteorite" and is immune to any missile defence system, the Russian president claimed, before adding that a launch of several of the missiles could be as devastating as a nuclear strike, even if fitted with conventional warheads.
The Royal United Services Institute has previously assessed that an IRBM travelling at Mach 10 - such as Oreshnik - could reach Britain within 10 minutes if launched from western Russia.
(c) Sky News 2026: At least four killed in Kyiv airstrikes as Zelenskyy claims hypersonic missile used during

Gun suspect killed after opening fire at White House security checkpoint
Pakistan: 24 people killed after suicide bomber targets train carrying military personnel
British man killed in action while fighting alongside Ukrainian troops
Alain Prost: Formula 1 legend 'injured during home invasion' in Switzerland