Poland closes airspace after Belarusian balloon incursion

"Polish authorities temporarily closed the airspace along the northern part of Poland's border

with Belarus overnight on Jan. 30-31 after unidentified objects — believed to be Belarusian smuggling balloons — were detected in the region.
The incident, the second such airspace incursion this week, forced a halt to civilian aviation in northeastern Podlaskie Voivodeship region, the Operational Command of the Polish Armed Forces said on social media.
European airports have increasingly dealt with airspace alerts involving drones or unidentified objects, prompting temporary shutdowns in cities various European cities." KI