(Reuters) – Russia launched an intense missile and drone barrage at the Ukrainian capital Kyiv in the early hours of Friday and three people were killed, Ukrainian officials said, as powerful explosions reverberated across the country.

The attacks followed a warning from Russian President Vladimir Putin, conveyed via U.S. President Donald Trump, that the Kremlin would hit back after Ukrainian drones destroyed several strategic bomber aircraft in attacks deep inside Russia.

Kyiv’s military administration said three people were killed in the missile and drone salvo against the capital. They were first responders who had rushed to the scene of one of the strikes, Interior Minister Ihor Klymenko said.

“Overnight, Russia ‘responded’ to its destroyed aircraft… by attacking civilians in Ukraine…. Multi-storey buildings hit. Energy infrastructure damaged,” Foreign Minister Andrii Sybiha wrote on X.

Russia Claims Military Targets Hit

Russia’s Defence Ministry said its forces had carried out the strike on military and military-related targets in response to what it called Ukrainian “terrorist acts” against Russia.

Ukrainian President Volodymyr Zelenskiy said 49 people nationwide had been injured in the attacks, which also struck several other towns and cities as well as Kyiv, as he called on Ukraine’s Western allies to ramp up pressure on Russia.

The air force said Russia had used 407 drones, one of the largest numbers recorded in a single attack. Forty-five cruise and ballistic missiles were also fired, it said.

Kyiv’s metro transport system was disrupted by a Russian strike that hit and damaged tracks between stations, the military administration said. The state rail company said it was also diverting some trains due to rail damage outside the city.

Booming Explosions

Reuters witnesses reported a series of booming explosions powerful enough to rattle windows far from the impact sites.

Some Kyiv residents sought shelter in metro stations, or in underground car parks.

In the capital’s Solomianskyi district, a Russian drone slammed into the side of an apartment building, leaving a gaping hole and burn marks, a Reuters photographer at the scene said.

Falling concrete blocks from the building crushed cars parked below. Two police investigators were examining what appeared to be the drone’s engine.

Earlier in the night, Reuters reporters heard the sound of Russian kamikaze drones buzzing in the sky, accompanied by the sounds of outgoing fire from Ukrainian anti-aircraft batteries.

Zelenskiy called for concerted pressure on Russia.

“If someone is not applying pressure and is giving the war more time to take lives – that is complicity and accountability. We must act decisively,” he wrote on X.

Multiple Cities Targeted

As well as Kyiv, Russian forces also struck industrial facilities and infrastructure in the western city of Ternopil, leaving parts of it without power, Mayor Serhii Nadal said.

The regional administration said the attack had injured 10 people and recommended that residents temporarily stay inside due to a high concentration of toxic substances in the air after a fire.

Fifteen people were injured in the northwestern city of Lutsk where an attack damaged private homes, educational institutions and a government building, prosecutors said.

The Ukrainian military said it had launched a pre-emptive strike overnight on the Engels and Dyagilevo airfields in the Russian regions of Saratov and Ryazan, in addition to striking at least three fuel reservoirs.

In one of the most audacious attacks of the three-year-old war between Ukraine and Russia, Ukrainian spies last weekend destroyed some of Russia’s strategic bomber aircraft on the ground using quadrocopter drones hidden in wooden sheds.

After a phone conversation with Putin on Wednesday, Trump said the Kremlin was planning an unspecified response to the Ukrainian attack on the Russian air bases.

(Reporting by Tom Balmforth, Max Hunder, Gleb Garanich and Anastasiia Malenko; writing by Ron Popeski; editing by Raju Gopalakrishnan, Clarence Fernandez, Gareth Jones and Mark Herinrich)