Despite a US-brokered ceasefire running through May 11, both Ukraine and Russia accused each other of continued attacks across the battlefield and by drone on Sunday.
Ukrainian officials claimed that Russian drone strikes and nearly 150 battlefield clashes occurred over the past 24 hours.
US President Donald Trump said on Friday that Russia and Ukraine had agreed to a three-day ceasefire from May 9 to May 11, as a broader peace effort to end the more than four-year-old war has stalled.
One person was killed, and three people were wounded in Russian strikes on Ukraine's southeastern Zaporizhzhia region, governor Ivan Fedorov said on Sunday morning.
In the northeastern Kharkiv region, Governor Oleh Syniehubov said eight people, including two children, were wounded in drone attacks on the regional capital and nearby settlements.
Seven people, including a child, were wounded in the southern Kherson region by Russian drone and artillery strikes since early Saturday, regional governor Oleksandr Prokudin said on Sunday.
A child was also wounded and infrastructure damaged in Russian attacks on the southeastern Dnipropetrovsk region, said regional head Oleksandr Hanzha.
Separately, Kiev's air force said Russia had launched 27 long-range drones at Ukraine overnight, a lower number than usual, but that air defences had downed all of them.
In its morning report, Ukraine's General Staff said 147 clashes had taken place along the front line.
Despite the reports, Ukrainian officials have not publicly commented on any violations of the US-brokered ceasefire, which was also meant to include a swap of 1,000 prisoners of war from each side.
Moscow claims 16,071 violations
Meanwhile, Russia on Sunday also accused Ukraine of violating the three-day ceasefire proposed by Trump.
In a statement, the defence ministry said 16,071 violations by Kiev had been recorded over the past 24 hours.
According to the ministry, Ukrainian forces carried out 676 attacks on positions held by the Russian armed forces, as well as 6,331 drone strikes during the same period.
The ministry added that 57 drones had been shot down and that Russian forces responded to the attacks “in a mirror manner.”
While Russia had announced a ceasefire for May 8-9 on account of Victory Day, Trump later proposed the three-day ceasefire for May 9-11, which was accepted by both sides.
