More than two million people have fled Ukraine till now due to the Russian attack. And it’s being dubbed as the fastest-growing refugee crisis in Europe since World War Two.
They are escaping to neighbouring countries to the west, such as Poland, Romania, Slovakia, Hungary and Moldova.
Many of them have gone to Russia and Belarus.
The UN says that so far Poland has taken in 1,204,000 refugees, Hungary 191,000, Slovakia 141,000, Moldova 83,000, Romania 82,000, Russia 99,300 and Belarus 453.
More than 210,000 people have moved on from these countries to others in Europe, the UN says.
Trains heading towards Ukraine’s border have been packed, and there have been long queues of traffic on roads leading out of the country, according to BBC.
UN spokeswoman Joung-ah Ghedini-Williams, who is in Warsaw, told the BBC it was mostly women and children making the crossing into Poland, with some facing waits of 24 hours. In some cases, children were travelling with distant relatives or family members who returned to Ukraine after dropping them off, she said.
As per reports, refugees have been told that they do not need documents, but should preferably have their internal or foreign passports, birth certificates of children travelling with them and medical documentation.
To get refugee status, they need to be Ukrainian citizens or people legally living in Ukraine, such as foreign students.
In countries that border Ukraine, refugees are being put up in reception centres if they do not have friends or relatives with whom they can stay. They are given food and medical care in these centres.