Estonia and Lithuania have accused Russia of jamming GPS signals in the Baltic region.

"GPS interference in Estonian airspace by RF (the Russian Federation) has affected civil aviation in our region. In doing so Russia violates international regulations," Estonian Foreign Minister Margus Tsahkna said on social media.

The comments come after Finnish airline Finnair suspended services to the Estonian city of Tartu on Monday.

It said ongoing GPS disturbances had prevented two aircraft from landing.

"Finnair will suspend its daily flights to Tartu, Estonia, from April 29 to May 31, so that an alternative approach solution that does not require a GPS signal can be put in place at Tartu Airport," Finnair said in a statement.

The airline said it did not know the cause of the GPS interference but mentioned an increase in incidents since 2022, especially near Russia's Kaliningrad exclave, the Black Sea, the Caspian Sea and the Eastern Mediterranean.