The Polish military said combat aircraft and other air-defense assets were operating in the country’s airspace following Russian attacks on Ukrainian territory. The measures were described as preventive and aimed at protecting areas adjacent to regions potentially affected by the strikes.

The activation came as Russia carried out a large-scale missile and drone assault on Ukraine, including attacks on the capital, Kyiv, prompting heightened vigilance among neighboring NATO states. Polish authorities said the operation was intended to ensure the integrity of national airspace and maintain readiness in the event of any spillover from the conflict.

Later on Sunday, Poland’s armed forces reported that no violations of Polish airspace had been detected during the Russian strikes. Military officials said the aviation deployment remained a precautionary response to developments across the border rather than a reaction to any direct incursion.

The latest activation reflects a pattern of heightened military alertness in Poland since Russia’s full-scale invasion of Ukraine. Warsaw has repeatedly scrambled aircraft, activated air-defense systems and coordinated with NATO allies when major Russian missile and drone attacks have targeted western Ukraine near the Polish border.

Poland, one of Ukraine’s strongest supporters within NATO, serves as a critical logistics corridor for Western military assistance flowing into Ukraine. The country has also expanded investments in air-defense infrastructure and surveillance capabilities amid growing regional security concerns.

Recent weeks have seen increased tensions across NATO’s eastern flank, including reports of drone-related incidents and military interceptions in the Baltic region. Earlier this month, Polish fighter aircraft intercepted a Russian reconnaissance plane over international waters in the Baltic Sea, which Warsaw characterized as a provocative action.

While Sunday’s operation concluded without any reported breach of Polish territory, the deployment underscored the continuing risk that Russia’s air campaign against Ukraine could affect neighboring alliance members and further elevate tensions .

Latvia’s military said in a statement that multiple unmanned aerial vehicles crossed into the airspace of the European Union and NATO member state, which shares a border with Russia.“Several unmanned aerial vehicles entered Latvian airspace,” the armed forces said, adding that two of the drones crashed on Latvian territory.

National police said one drone fell at an oil depot in Rezekne, near Latvia’s eastern frontier, causing a fire that firefighters later extinguished. Authorities did not report casualties or major infrastructure damage.The Latvian army warned that similar incidents could recur while Russia’s war in Ukraine continues.

“As long as Russian aggression against Ukraine continues, it is possible that such incidents will be repeated, when a foreign unmanned aircraft enters Latvian airspace or approaches it,” the military said.The incident marks the latest security concern for the Baltic states since Russia launched its full-scale invasion of Ukraine in February 2022.

Stray or downed drones linked to the conflict have periodically entered or crashed in the territories of Latvia, Lithuania and Estonia, all former Soviet republics that are now members of NATO and the European Union.The Baltic region has heightened air defense monitoring and border surveillance amid fears that the Ukraine conflict could spill into neighboring territories through military accidents or escalating regional tensions.

Russia has not publicly commented on the incident.