Migrants carry a tree trunk delivered by the Belarusian officials in a camp on the Belarusian-Polish border in the Grodno region on November 12, 2021. - Hundreds of desperate migrants are trapped in freezing temperatures on the border and the presence of troops from both sides has raised fears of a confrontation. AFP

children in a migrants camp on the Belarusian-Polish border in the Grodno region. - Hundreds of desperate migrants are trapped in freezing temperatures on the border and the presence of troops from both sides has raised fears of a confrontation. AFP

A picture taken on November 12, 2021 shows children in a migrants camp on the Belarusian-Polish border in the Grodno region. - Hundreds of desperate migrants are trapped in freezing temperatures on the border and the presence of troops from both sides has raised fears of a confrontation. AFP

A picture taken on November 12, 2021 shows children in a migrants camp on the Belarusian-Polish border in the Grodno region. - Hundreds of desperate migrants are trapped in freezing temperatures on the border and the presence of troops from both sides has raised fears of a confrontation. AFP

A picture taken on November 12, 2021 shows migrants in a camp on the Belarusian-Polish border in the Grodno region. - Hundreds of desperate migrants are trapped in freezing temperatures on the border and the presence of troops from both sides has raised fears of a confrontation. AFP

A migrant sits by a bonfire in a camp on the Belarusian-Polish border in the Grodno region on November 12, 2021. - Hundreds of desperate migrants are trapped in freezing temperatures on the border and the presence of troops from both sides has raised fears of a confrontation. AFP

A girl holds a poster for journalist as migrants gather at the Belarus-Poland border near Grodno, Belarus, Friday, Nov. 12, 2021. About 15,000 Polish troops have joined riot police and guards at the border. The Belarusian Defense Ministry accused Poland of an unprecedented military buildup there, saying that migration control didn t warrant such a force. AP

Migrants walk along the barbed wire as they gather at the Belarus-Poland border near Grodno, Belarus, Friday, Nov. 12, 2021. About 15,000 Polish troops have joined riot police and guards at the border. The Belarusian Defense Ministry accused Poland of an unprecedented military buildup there, saying that migration control didn t warrant such a force. AP

A Polish military helicopter lands next to troops near migrants gathering at the Belarus-Poland border near Grodno, Belarus, Friday, Nov. 12, 2021. About 15,000 Polish troops have joined riot police and guards at the border. The Belarusian Defense Ministry accused Poland of an unprecedented military buildup there, saying that migration control didn t warrant such a force. (Leonid Shcheglov/BelTA pool photo via AP)

Migrant carry firewood as they gather at the Belarus-Poland border near Grodno, Belarus, Friday, Nov. 12, 2021. About 15,000 Polish troops have joined riot police and guards at the border. The Belarusian Defense Ministry accused Poland of an unprecedented military buildup there, saying that migration control didn t warrant such a force. AP