Latvia issued an air threat alert Thursday for eastern areas bordering Russia and Belarus, while Finnish authorities simultaneously imposed temporary restrictions on aviation and maritime traffic in the eastern Gulf of Finland. Latvian authorities urged people in affected areas to follow official safety instructions as the military monitored a potential aerial threat. In Finland, restrictions were established over areas close to the Russian maritime frontier as a precautionary measure. Authorities had not immediately confirmed that an aircraft or drone had entered either country’s territory, and the precautionary measures alone did not indicate that an attack was underway.

Both countries have repeatedly activated similar procedures during 2026 as long-range drone warfare between Ukraine and Russia has increasingly affected airspace around NATO’s northeastern frontier. Finland’s Defence Forces have said temporary restriction zones can be established with little warning to clear civilian aircraft and vessels from areas where military forces may need to safely intercept a stray drone. Finnish authorities have imposed such restrictions several times this summer in the eastern Gulf of Finland, including during periods of Ukrainian long-range operations against targets around Russia’s Leningrad region. The measures are intended primarily to protect civilians and give military units greater freedom to respond if an unidentified aircraft approaches Finnish territory.

Latvia has faced a more direct series of airspace incidents. In May and June, several suspected or confirmed drones crossed into Latvian territory from the direction of Russia, triggering civilian alerts and deployments of NATO aircraft. Latvian authorities have previously said Russian electronic warfare operating near the border may divert drones from their intended routes, while Ukraine has maintained that its long-range weapons are intended for targets inside Russia and are not deliberately routed through NATO territory. In one June incident, NATO aircraft intercepted a drone after it entered Latvian airspace from Russia.

Thursday’s simultaneous measures underscore the increasingly sensitive security environment around the Baltic Sea and NATO’s border with Russia and Belarus. Latvia and Finland are both NATO members, meaning unidentified aerial activity approaching their territory is closely tracked even when no hostile intent has been established. Officials had not immediately identified the specific object or activity responsible for the latest Latvian alert or confirmed any connection between Latvia’s warning and Finland’s restrictions.