Belarusian state border committee released on Sunday a video showing a group of people between two barbed wire fencings, guarded by unidentified servicemen.

The footage was filmed presumably from the Belarusian side of the Belarus-Poland border as the migrant cirisis has deepened this week.

According to the committee’s statement, migrants got stuck between fences at the checkpoint Kuznitsa on the Polish side.

Polish security forces took around 60 migrants at night, hours later brought them to the other part of the Belarus-Poland border and pushed them to the Belarusian side, the committee said. The migrants later joined the improvised camp near the border, the committee said.

Polish police on Sunday said that a group of about 50 migrants broke through defences on the border with Belarus and entered Poland near the village of Starzyna.

“Yesterday, before 5 pm, around 50 people broke into Poland near Starzyna,” Podlaska police said on Twitter, adding that 22 Iraqi citizens were subsequently arrested.

Thousands of migrants have travelled to Belarus in the hope of crossing into the European Union, only to find themselves trapped on the border in freezing conditions.

The European Union accuses Minsk of orchestrating the crisis to put pressure on the bloc over sanctions it has imposed, but Belarus has repeatedly denied this. Some countries in the region have warned the standoff could escalate into a military conflict.

The police also said they were attacked on Saturday evening during a separate attempt to force through the border, with one officer’s helmet being damaged after a stone was thrown at him.

In total, the Polish Border Guard said there were 223 attempts to illegally cross the border on Saturday.