Ukraine's government said there was no agreement on an evacuation ceasefire with Russia in Mariupol, and called on the UN to broker a deal to rescue trapped civilians.
Russian forces have now shifted their focus to the offensive in the eastern Donbas region of Ukraine.
Heavy shelling and fighting have continued in the east and south as Russia's army attempts to establish control over the region.
Follow our blog below to see how events unfolded on Monday 25 April:
For a summary of Sunday's developments, click here.