Lithuania suspended air traffic at Vilnius Airport due to balloons possibly flying in its airspace, and flights have been diverted to neighboring countries, the airport's operator said late Saturday.

European aviation has repeatedly been thrown into chaos in recent weeks by drone sightings and air incursions, including at airports in Copenhagen and Munich.

"The decision was made due to a possible series of balloons heading toward Vilnius Airport," the operator said in a statement on its Facebook page. "As a result of this incident, flights have been affected."