An 11-year-old boy was able to flee Ukraine at the Slovakian border on his own.
The schoolboy has been hailed as a 'hero of the night' by Slovakian authorities after he crossed the border.
He had just a backpack, a plastic bag, his passport and a telephone number written on his hand, according to the Slovak Ministry of Interior. The report has not been independently verified.
"He came all alone because his parents had to stay in Ukraine. Volunteers took care of him, took him to a warm place and gave him food and drink,” the ministry said.
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The statement, posted on the ministry’s Facebook page yesterday, said that thanks to the information written on the boy’s hand and on a piece of paper that was folded in his passport, the staff at the border were able to get in touch with the boy’s relatives in Slovakia who were then able to come and collect him.
“He won over everyone with his smile, fearlessness and determination worthy of a real hero,” the statement said.
It is not clear why the boy was unaccompanied with his parents reportedly remaining in Kyiv.
The UN estimates that 1.5m people have left Ukraine since the outbreak of war on February 24 - that amounts to about 3.5% of the total population.
The majority of them have fled to Poland but other counties such as Hungary, Slovakia and Moldova have also taken refugees.
Ukrainian soldiers bolstered defences around Kyiv on Sunday, digging trenches, blocking roads and liaising with civil defence units as Russian forces bombarded the surrounding areas and attacked towns and villages nearby.
While the armed forces and civilian volunteers dug in, thousands of people continued to try to flee the city of 3.4 million as fears of a full assault spread.
Russia has concentrated its heaviest attacks on the south and east of the country, besieging cities including Mariupol and Kharkiv with artillery fire and air strikes and causing extensive damage and casualties.
Kyiv has been spared the worst of the fighting so far, but intense battles have raged in surrounding towns and villages and Russia's defence ministry released footage on Sunday of some of its tracked military vehicles on the move near the capital.
Video provided by Ukraine's armed forces taken on Saturday in the Kyiv region, showed Ukrainian efforts to defend the capital, with piles of sandbags and concrete slabs laid across a main road, while Ukrainian soldiers carefully checked passing cars.
A smaller road was blocked by metal "hedgehog" anti-tank barriers, and machine gun positions had been erected. Molotov cocktails were lined up on the side of the road, as civilians vowed to join the battle to protect Kyiv.
"We are equipped 100%," said an unidentified soldier in the footage. "Positions are prepared, we've fitted them out and we are simply waiting to meet them here ... Victory will be ours."