Poland has accused two Ukrainian nationals of engaging in espionage activities on behalf of Russian intelligence, following suspicions of railway sabotage. Prime Minister Donald Tusk claimed that the suspects have been cooperating with Russian services for a prolonged period. This allegation underscores the escalating geopolitical tensions between Poland and Russia, as the country continues to voice concerns over alleged Russian support for separatist groups in Ukraine. The incident has raised questions about the security of critical infrastructure and the potential involvement of foreign agents.