Lithuania accuses Belarus and Russia of a "deliberate escalation of hybrid warfare" as balloons shut down major airport.

The encroachment comes after several alleged Russian airspace violations in Estonia, Poland, Romania and Denmark

Russian jets violated NATO airspace over Lithuania for 18 seconds during suspected refueling exercise. Nation's president calls it a breach of international law amid tensions.

Russia has dismissed accusations by NATO member Lithuania that its aircraft violated its airspace. Lithuania said that at around 6 p.m. Thursday, a Russian Sukhoi Su-30 fighter jet and an Ilyushin Il-78 refueling tanker flew around 700 meters into its airspace from Russia's neighboring Kaliningrad region for 18 seconds before turning back.

Two Spanish fighters in Lithuania were scrambled and continued to patrol the air, according to the Lithuanian Armed Forces

Lithuania’s MoD says Russian military aircraft briefly entered its airspace, days after NATO condemned a similar September breach over Estonia.

Lithuanian President Gitanas Nausėda said Thursday that Russian military aircraft violated Lithuania’s airspace, calling the incursion a blatant breach of the country’s sovereignty and international law.

NATO member Lithuania said two Russian military aircraft entered its airspace on Thursday for about 18 seconds, prompting a formal protest and a reaction from NATO forces, while Russia denied the incident.