Elsewhere, Ukraine faced another night of overnight Russian strikes ahead of the fourth anniversary of Moscow’s full-scale invasion on Tuesday.
Kyiv said its air defences had countered 50 Russian missiles and nearly 300 drones overnight. The attacks targeted the energy sector, residential buildings, and railways, Zelensky said.
At least one person was killed in the Kyiv region, top local official Mykola Kalashnyk said, while a woman and a child were taken to hospital with injuries.
The latest aerial attack comes two days before the fourth anniversary of Russia’s full-scale invasion of Ukraine.
The invasion ordered by President Vladimir Putin has become the biggest war in Europe since World War Two, with hundreds of thousands of military casualties -killed, wounded and missing – believed to be on each side.
Western military experts estimate that Russian combat losses have been much higher than Ukraine’s.
Moscow currently controls about 20% of Ukrainian territory, including the southern Crimea peninsula it annexed in 2014.