The Operational Command of Poland's Armed Forces said it had deployed "all necessary forces and resources at its disposal" as a preventive measure to ensure the safety of Polish airspace amid Russian jet-powered drone attacks on Ukraine.
It added that it was "monitoring the situation on an ongoing basis."
Military aircraft were activated during the night, the Operational Command said in a statement, adding that measures were taken to ensure security in areas near the Ukrainian border.
"Ground-based air defence systems and radar reconnaissance have been placed on alert," the army said on X.
At around 5:30 a.m., the Operational Command said the threat of Russian strikes on regions bordering Poland had decreased and that military aircraft were returning to base.
"Activated ground-based air defence and radar reconnaissance systems have returned to standard operational activities," it said.
It reported no violations of Polish airspace during the attacks.
Russia launched a new wave of air strikes on Ukraine overnight, using dozens of jet-powered drones, according to reports.
Source: IAR/PAP