November 19 in Poland focused heavily on the railway sabotage investigation, with initial reports in the early morning of Polish and allied fighter jets scrambling due to Russian attacks on Ukraine, alongside temporary airport closures. By late morning, Foreign Minister Sikorski announced the closure of the last Russian consulate in Poland in response to the sabotage, prompting a strong reaction from the Kremlin. The investigation into the railway acts progressed rapidly, with several arrests made by early afternoon and two Ukrainian citizens officially charged by the evening. Concurrently, the Minister of National Defense launched "Operation Horyzont," involving up to 10,000 soldiers and police, as concerns about national security and cross-border information exchange with Ukraine were raised.