This: https://twitter.com/mariuszgierszew/status/1592595507427545088?s=12&t=udADJYtZ4KsVCOc1-JfW6w says that what fell on the Polish territory was the debris from a Russian missile shot down by the Ukrainian air defence. It’s from the Polish Radio Zet journalist who first reported the explosion earlier today #ukraine #WarOnUkraine