Germany has maintained controls on its border with Poland since 2023, but recently adopted a tougher approach, rejecting undocumented arrivals and sending them back to Poland under EU and bilateral agreements. Polish authorities say this has placed an unfair burden on their country.

The Polish government reintroduced border control measures between Lithuania and Germany due to growing public concern over what many say is irregular migration.

Poland introduced temporary controls on its borders with Germany and Lithuania on Monday, in what the government said was a step to check migrants more thoroughly amid public concerns over immigration.