Ukraine and Russia have each accused one another of hundreds of violations of a short ceasefire coinciding with Orthdox Easter celebrations.
The Ukrainian military said on Sunday morning that Russian forces had committed 2,299 violations since the truce began at 16:00 local time (13:00 GMT) on Saturday.
The Russian defence ministry, in turn, said Ukrainian forces had committed 1,971 violations, including three attempted counter-attacks in Dnipropetrovsk region.
Ukrainian President Volodymyr Zelensky earlier said his nation's forces would respond "symmetrically" to Russian attacks during the ceasefire, calling Easter "a time of peace".
He added that he hoped the truce could be extended beyond Easter to facilitate peace negotiations which have all but stalled with the outbreak of war in the Middle East - but Russia rejected the idea, saying its attacks would resume on Monday.
