Poland-Belarus border: The BBC reports from the camps within touching distance of the EU
Thousands of people, mostly from Iraq, Syria and Yemen, are at Belarus' border with Poland, enduring freezing conditions in the hope of crossing into the EU.
The bloc has accused Belarus of provoking the crisis to undermine the bloc's security, which it denies.
The BBC's Steve Rosenberg is at one of the migrant camps and has spoken to people stranded there.