Ukraine has shown reporters fragments of the missile it says hit a key government building in Kyiv this weekend, identifying it as a Russian Iskander cruise missile.
Officials here now believe the building was struck deliberately in the early hours of Sunday morning.
Vladimir Putin's response to Donald Trump's peace efforts has been a clear escalation in Russian attacks.
But they don't only target the Ukrainian capital.
In the eastern Donbas region, more than 20 civilians were killed by a Russian glide bomb on Tuesday as they queued to collect their pensions.
Volodymyr Zelensky condemned the strike on the village of Yarova as savage and called once again on Ukraine's allies to increase the pressure on Moscow through sanctions.
His office said some US and European weapons components are still reaching Russia, including for the Iskander missile. Moscow has already substituted the rest with its own production.
Strong actions are needed to make Russia stop bringing death, Ukraine's president wrote.
Our team was filming on Sunday morning during the air raid on central Kyiv and captured the moment the cabinet of ministers was hit. The images appear to show a direct strike: a missile suddenly arcs downwards, right before the explosion.
There is no indication of it being intercepted by air defences.
When we were allowed into the vast, Soviet-era building to see the damage, the smell of burning intensified as we climbed towards the top floor.
The roof and part of the walls in the damaged area have been blown apart and there's a gaping hole in the floor.
In Kyiv, the increase in early morning attacks is obvious: they've grown more frequent, but most importantly they're bigger in scale. Russia now launches hundreds of drones at a time, deliberately draining Ukraine's resources.
That's why Zelensky is constantly calling for more missiles: to someone far from Kyiv it might sound like he's stuck on repeat. But for people here, it might be the difference between life and death.
Closer to the front line, the tactics are different: deadly glide bombs arrive almost without warning.
In Yarova, those killed this time were elderly. They're the people who are most reluctant or least able to leave their homes, even as the fighting moves close again. The village was occupied by the Russians at the start of the full-scale invasion in 2022, then liberated later by Ukrainian troops.
Images from the scene show their bodies sprawled on the ground and a smashed-up post office van that had been delivering the pensions. It parked under a tree for cover, hoping not to be seen - but the bomb hit anyway.
Ukraine's Foreign Minister Andrii Sybiha called it a barbaric strike by Russia and a heinous crime against the very people and region Putin claimed needed saving when he ordered the invasion.
But Ukraine wants more than condemnation. It's still calling for action against the Russian economy and the defence sector there.
Ukrainian teams have been examining the remains of the missiles and drones launched by Russia since 2022, and the percentage of Western-made components has shrunk. But it still hasn't been eliminated.
Increased cooperation with China in producing the drones has also made them far harder to jam.
That may be what enabled Russia to hit the main government building in Kyiv for the first time - in the most tightly-guarded quarter of this city.
