On Friday, Vice President Kamala Harris refused to be drawn on comparisons to the U.S.-Mexico border situation but said the Biden Administration is “very concerned” about the crisis unfolding in Europe.

Meanwhile, Russia has denied stoking the crisis at the border and instead blamed Western actors.

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Amnesty also suggested Belarus is “facilitating the transit of people escaping human rights violations to a destination where their rights are violated again on the EU border”.

She said the measures would focus on airlines thought to be exacerbating the crisis.

The Polish government is warning that they could be preparing to"cross the border by force".

Pictures taken last night show groups huddled around campfires as temperatures reached near freezing close to the Belarusian city of Grodno.

While the EU is showing its reluctance to allow them entry to the bloc, it is has urged both countries to ensure humanitarian aid organizations can gain access to provide urgent food supplies and medical assistance.

Images and videos have shown migrants and refugees starving and living in severely unhygienic conditions in camps along the border.