A Ukrainian woman reacts after arriving at the Medyka border crossing in Poland, on Sunday. AP
Speaking before the UN Human Rights Council, Michelle Bachelet said her office had recorded 406 civilian casualties in Ukraine, including 102 deaths, since Russia began its full-scale attack last on Thursday.
“Most of these civilians were killed by explosive weapons with a wide impact area, including shelling from heavy artillery and multi-launch rocket systems, and airstrikes,” she said, warning “the real figures are, I fear, considerably higher.”
A Ukrainian family walks towards the Medyka-Shehyni border as they flee on Monday. AFP
The UN High Commissioner for Human Rights said the suffering in Ukraine was widespread.
"Millions of civilians, including vulnerable and older people, are forced to huddle in different forms of bomb shelters, such as underground stations, to escape explosions," she said.
She pointed out that the UN refugee agency has already tallied 368,000 people fleeing the country as refugees, with many more displaced inside Ukraine.
"My thoughts go out to them and to all those across the world who suffer," she said.
"The calls for peace and human rights that are coming from individuals all over the world warn us that our future must not be a world that has become unmoored from the jointly agreed obligations of international human rights law, and from the Universal Declaration of Human Rights."
A child hugs his parents on the side of the road on their way to border crossing between Ukraine and Poland. AFP
Bachelet's comments came at the start of the UN rights council's main annual session, which began with a vote to host an urgent debate on the Ukraine conflict later this week.
Ukraine, which had requested the debate, is expected to present a resolution calling for an investigation into Moscow's violations in the country.
Russia had rejected Ukraine's request for the debate and demanded the issue be put to a vote, but a large majority of the 47 council members supported Kyiv's request.
Ukraine's ambassador in Geneva, Yevheniia Filipenko, described Russia's actions as an attack on the wider international community.
"It was an attack not only on Ukraine, it was an attack on every UN member state, on the United Nations and on the principles that this organisation was created to defend," she said.
She said over 350 people had been killed in the five days since the invasion began, including 16 children.
Ukraine's deputy defence minister Hanna Malyar on Sunday claimed that Russia lost 4,300 servicemen to the invasion and suffered a loss of 146 tanks, 27 aircraft and 26 helicopters.
The seven were among hundreds of people who tried to flee the village of Peremoha, 20 kilometers (12 miles) northeast of Kyiv. An unknown number of people were wounded in the shelling, the report added.
Speaking by phone with the media, Mariupol Mayor Vadym Boychenko accused Russian forces of having blocked weeks of attempted humanitarian convoys into the city in part to conceal the carnage there from the outside world.
Russia and Ukraine traded blame over the failure to provide safe passage to civilians fleeing the two bombarded cities, on the 10th day of a war that has fuelled Europe's biggest humanitarian disaster in decades.
Around 100 tents were destroyed in a fire at one of the refugee camps in Lebanon on Wednesday. According to local media reports the tragic incident happened at Al Wafa refugee camp in Lebanon's Arsal region, northeast of Beirut.
In a statement, the Foundation revealed that an Emirati woman had endowed a property in the Al Nahda II area in Dubai. The property is a 12-floor-residential building consisting of 74 apartments spread over 12 floors.
Among the areas that witnessed fog formation were Al Ajban, Al Samih and Bu Hamra areas in Abu Dhabi, Ghayathi Road, Madinat Zayed, Bida Al Tawa and Mukheiraz in Al Dhafra region, and on Al Khazna, Ramah and Sweihan areas in Al Ain, the NCM said.