The number of people who had left Ukraine reached 1.45 million as Russia's war on Ukraine entered Day 10 Saturday, according to the International Organization for Migration (IOM).
The UN migration agency, citing figures from government ministries in countries where they arrived, said 787,300 of them went to Poland.
Around 228,700 fled to Moldova, 144,700 to Hungary, 132,600 to Romania and 100,500 to Slovakia.
Nationals of 138 countries crossed Ukraine's borders into neighbouring nations, the IOM said.
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The military offensive in Ukraine has destroyed civilian infrastructure and civilian casualties and forced people to flee their homes seeking safety, protection and assistance.
In the first week, more than 1 million refugees from Ukraine crossed borders into neighbouring countries, and many more are on the move both inside and outside the country.
As the situation continues to unfold, an estimated 4 million people may flee the country, according to the UN refugee agency (UNHCR)
In light of the emergency and paramount humanitarian needs of refugees from Ukraine, an inter-agency regional refugee response is being carried out, in support of refugee-hosting countries’ efforts, it says.
The regional refugee response plan brings together the UN, NGO and other relevant partners and primarily focuses on supporting the host country governments to ensure safe access to the territory for refugees and third-country nationals fleeing from Ukraine, in line with international standards.
It also focuses on the provision of critical protection services and humanitarian assistance, while displacement dynamics and needs continue to grow exponentially.
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