EU member Bulgaria imposed the flight ban, along with North Macedonia and Montenegro — countries hoping, like Serbia, to join the EU.

Russia's foreign ministry confirmed the cancellation. Russia's invasion of Ukraine triggered an EU airspace ban.

Serbia remains friendly with Russia.

Serbia has not joined the EU's wide-ranging sanctions against Russia. The EU and UK imposed a blanket flight ban on Russian planes - including the private jets of oligarchs - days after the 24 February invasion.

Like many other European countries, Serbia relies heavily on Russian gas. Lavrov was to have had talks in Belgrade with President Aleksandar Vucic on 6-7 June.

The Kremlin strongly backs Serbia's refusal to recognise Kosovo's independence. Russia was angered by the Nato bombing campaign against Serbia in 1999 during the Kosovo war.

Commenting on the Balkan move to bar Lavrov's flight, a Russian foreign ministry source said "our diplomacy has yet to master teleportation".

In early March thousands of pro-Russian Serbs marched through Belgrade, reflecting the countries' traditionally close ties.