In 2025, Polish border guards uncovered four underground tunnels at the Polish-Belarusian border, with the most significant one found near the village of Narewka. This tunnel facilitated the illegal entry of about 180 migrants, predominantly from Afghanistan and Pakistan, into Poland in mid-December, most of whom were apprehended shortly after emerging from the narrow passageway. The tunnel measured approximately 1.5 meters in height, extending about 50 meters into Belarus and 10 meters into Poland, with its entrance cleverly concealed within a forest.

The construction of the tunnel raised significant concerns, primarily due to the method of its creation. Reports indicate that the walls were reinforced with concrete supports, suggesting advanced technical capabilities and the experience of those who built it. This was not just a makeshift passage but a well-planned and secured structure that reflects a serious and organized effort to facilitate illegal crossings across the border, increasing the stakes of border security for both Poland and Belarus.

Moreover, some experts speculate that the support for such tunnel constructions could imply collaboration between Russia and Belarus, potentially expanding the influence of militant groups like Hamas and Hezbollah. This raises alarms regarding the geopolitical ramifications of such initiatives, particularly as they relate to migration patterns and security threats in the region, prompting urgent discussions among Polish authorities about strengthening border surveillance and preventative measures to counter future incursions.