WARNING: DISTURBING IMAGES

A gut-wrenching picture shows a Ukrainian mom crouched over the lifeless body of her young son, gently stroking his head, after Russia unleashed one of its most fearsome strikes yet on Kyiv overnight Wednesday.

The 11-hour drone and missile assault targeted residential buildings and infrastructure in the Ukrainian capital, killing at least 25 people in what Foreign Minister Andrii Sybiha grimly described as a “night of horror.”

Children were among the “significant number” of casualties, Tymur Tkachenko, the head of Kyiv’s ​military administration, said.

“The enemy is once again deliberately targeting residential areas and killing civilians,” he railed early Thursday, according to the BBC.

Harrowing photos laid bare the unimaginable horrors left in the wake of the relentless bombardment.

One of the most haunting scenes shows a grieving mother with her hand placed lovingly on her dead son’s head after he was slaughtered in the strikes.

The boy’s body, draped in a white sheet soaked with blood, lies lifeless on the floor of a bombed-out home atop a pile of bloody rags.

Other graphic images taken in the immediate aftermath of the brutal attack show emergency crews carrying gravely wounded children to safety.

One picture shows a young man’s singed legs and bloodied torso as police hoist him down the concrete steps of his apartment building, which is littered with debris and shattered glass.

In another disturbing scene, a young victim’s feet, smeared with mud and deep-red blood, clasps his arms around his chest as a fire crew hauls him out of harm’s way in a makeshift cloth gurney.

His badly injured face is rendered unrecognizable.

The massive aerial assault hit some 30 locations across Kyiv, injuring around 90 people, Kyiv Mayor Vitali Klitschko said.

Huge columns of ‌smoke filled the skyline, and more than 50,000 people sheltered in subway stations as loud explosions rocked the besieged capital city.

In all, Russia fired 74 missiles and 496 drones in the attack, including “high-precision long-range weapons,” Ukraine’s air force said.

Ukraine’s Foreign Minister warned the death toll could rise as rescue teams frantically combed bombed-out buildings for survivors.

For some, however, the hope of missing relatives being found safely was quickly extinguished as bodies were pulled from the rubble.

“Our house is on fire. Oleg was pulling our neighbour out of the burning house, while I was phoning all the ​emergency services during the explosions,” Kyiv resident Iryna Plekhova said on ​Facebook.

“We ⁠do not have an apartment anymore.”

The horrifying images surfaced almost exactly a year after a 1-year-old Ukrainian boy named Dmytryk was killed by a Russian drone as he played in his grandmother’s yard.

A photo showing the infant struck down by Russia sent shockwaves of grief around the world, with the unforgettable image unveiling the wanton cruelty of Vladimir Putin’s regime in its unrelenting pursuit of capturing additional Ukrainian territory.

Russia’s war on Ukraine — which is now in its fifth year — has repeatedly hit civilian areas. More than 16,000 Ukrainian civilians have been killed in the war, according to the United Nations.

The Kremlin’s Defense Ministry, meanwhile, said in a statement that the bombardment was in response to Ukraine’s recent barrage of long-range strikes, which have caused severe fuel shortages in the country.