Warsaw: An unidentified aerial object entered the airspace of NATO-member Poland from the direction of the border with Ukraine on Friday morning, the Polish army's Operational Command said.
"In the morning, an unidentified aerial object entered the airspace of the Republic of Poland from the side of the border with Ukraine, and from the moment it crossed the border until the signal disappeared, it was observed by the radars of the country's air defence system", the operational command said on social media platform X.
"In accordance with applicable procedures, the operational commander of the armed forces mobilized the available forces and resources at his disposal."
Private broadcaster TV Republika had reported that a search for the object was happening near the town of Hrubieszow in southern Poland. Reuters was unable to immediately confirm this information.
Russia targeted Ukraine with 158 drones and missiles overnight in its biggest air attack since the beginning of the full-scale invasion, targeting critical infrastructure, industry and military facilities, the Ukrainian military said.