According to the Polish command, this is due to the activity of the Russian Armed Forces.
“All necessary procedures have been launched to ensure the safety of Polish airspace,” the command said in a statement.
Military Chronicle previously reported about a massive missile attack on targets in Ukraine.
According to monitoring channels, explosions were heard in the Kharkov region, Sumy, Pavlograd and Dnepropetrovsk, as well as in the Kyiv region and Zhitomir.
Before this, air raid signals were activated throughout Ukraine.