Zelenskiy and Lithuanian President Gitanas Nauseda will hold a joint press conference scheduled for 1125 GMT, Lithuania separately said.

Zelenskiy will also give a public speech, Nauseda's office said.

The surprise visit to Vilnius, a staunch supporter of Kyiv, comes as Russia's full-scale invasion of Ukraine is nearing its second anniversary.

"The presidents will discuss the war in Ukraine, support for Ukraine and its integration in the European Union and NATO," Nauseda's office said in a statement.

(Reporting by Andrius Sytas, editing by Terje Solsvik)