"We cannot call Mr. Lukashenko legitimate because there were no free democratic elections in Belarus," the president said in an interview with the British TV channel Sky News.
"Russia is interested to have a satellite state and Belarus would be probably fully integrated into Russia if we stay passively and just watch this process," Nauseda warned.
It is in the European Union's interests that Belarus is a "stable, democratic and sovereign" state, the president said in the interview which he gave on Thursday, according to his office.
Earlier this week, Nauseda offered to mediate in resolving the political crisis in Belarus together with the presidents of Poland, Latvia and Estonia.
If the initiative fails, then sanctions will have to be considered, he said.
Later on Friday, EU foreign ministers are expected to discuss possible sanctions against Belarus' officials responsible for vote-rigging and violence against protesters.
717 new coronavirus cases recorded
Lithuania registered 717 new coronavirus infections and 18 deaths from COVID-19 for the past 24 hours,...
President wants EU-level target date for herd immunity against coronavirus
The European Union must agree on a target date for reaching herd immunity against COVID-19, an advisor...
Anusauskas: Lithuania starts work on comprehensive national defense plan
Lithuania’s authorities are starting work on a comprehensive national defense plan, which will...
Lithuania calls for EU sanctions against Russia over Navalny’s detention
The European Union (EU) should consider sanctions against Russia if top Kremlin critic Alexei Navalny...
476 new coronavirus cases
On Sunday, 476 new COVID-19 cases were recorded in Lithuania. Overall, the country has already...
Top news
President wants EU-level target date for herd immunity against coronavirus
The European Union must agree on a target date for reaching herd immunity against COVID-19, an advisor...
Lithuania calls for EU sanctions against Russia over Navalny’s detention
The European Union (EU) should consider sanctions against Russia if top Kremlin critic Alexei Navalny...
717 new coronavirus cases recorded
Lithuania registered 717 new coronavirus infections and 18 deaths from COVID-19 for the past 24 hours,...
Novaturas to relaunch trips from Baltics to Tenerife, Egypt in February
Novaturas, a leading Baltic tour operator, is set to relaunch charter flights to resorts in Tenerife...
Euro area heads for double-dip recession as lockdowns drag on
The euro-area economy is poised to shrink again at the start of this year as the resurgent pandemic...