Fighting in Ukraine continued over the weekend, with Ukraine saying its forces have retaken all areas around the capital Kyiv, claiming control of the region for the first time since Russia launched its invasion on February 24.
Fresh allegations of war crimes have been made against Russian troops, as bodies of civilians were found lying in the streets in the nearby town of Bucha.
Explosions have continued to be heard in the port cities of Mariupol and Odesa, as peace talks continue.
Here's the latest from what happened overnight.
Russian forces accused of 'massacre' in Bucha
Ukraine has accused Russian forces of carrying out a "massacre" in the town of Bucha, near the capital Kyiv.
Ukraine authorities found 410 bodies in towns near Kyiv as part of an investigation into possible war crimes by Russia, the country's top prosecutor said.
US Secretary of State Antony Blinken described images of dead bodies as "a punch in the gut".
A satellite image from Bucha showed a trench around 14 metres in length dug into the grounds of a church where a mass grave had been identified, US company Maxar Technologies said.
The image, captured on March 31, followed previous imagery from March 10 that showed signs of excavation on the grounds of the Church of St Andrew Pyervozvannoho All Saints.
Russia's defence ministry denied allegations its forces were responsible for the deaths of civilians, and said Ukraine had staged a performance for the Western media.
Moscow requested the United Nations Security Council convene to discuss what Russia called a "provocation by Ukrainian radicals" in Bucha.
Fighting continues in besieged Mariupol
Heavy fighting has continued in the southeastern port city of Mariupol, as Russian forces attempt to take the city.
"The city continues to be subject to intense, indiscriminate strikes but Ukrainian Forces maintain a staunch resistance, retaining control in central areas," the UK Ministry of Defence said.
Ukraine evacuated 2,694 people from conflict zones in Mariupol and the region of Luhansk on Sunday, Ukrainian Deputy Prime Minister Iryna Vereshchuk said.
Ukrainian officials were in talks with Russia to allow several Red Cross buses to enter Mariupol, she added.
The Red Cross abandoned earlier attempts due to security concerns. Russia blamed the charity for the delays.
Tens of thousands of civilians have been trapped in Mariupol for weeks, with limited access to food and water.
Explosions heard in other cities
A series of explosions were heard in Ukraine's southern port city of Odesa in the late hours of Sunday, local time, but no official information has been released.
Earlier, local officials said Russian attacks had struck "critical infrastructure" near Odesa, most likely oil facilities.
Explosions were also heard in the occupied southern Ukrainian city of Kherson and the western city of Ternopil, local media reported.
Peace talks continue
Peace talks between Russia and Ukraine were set to continue via videoconference on Monday, local time, Russian chief negotiator Vladimir Medinsky said.
Russia said on Sunday that talks had not progressed enough for a leaders' meeting.
Moscow said its positions on the status of Crimea (which Russia annexed from Ukraine in 2014) and two Russian-backed rebel regions in the eastern Donbas (which President Vladimir Putin recognised as independent in February) remained unchanged.
The two sides have held periodic talks since Russia launched its invasion, but there has been no breakthrough and they remain far apart on the question of territory.
Russia has depicted its drawdown of forces near Kyiv as a goodwill gesture in peace talks.
Ukraine and its allies said Russia was forced to shift its focus to east Ukraine after suffering heavy losses.
ABC / Wires
