His spokesman Antanas Bubnelis told BNS the meeting was planned a long time ago and should have focused on regional security, anti-coronavirus measures, EU issues as well as the non-purchase of electricity from the Astravyets nuclear power plant.
"The energy or economy ministers have failed to reach trilateral agreement on the updated methodology on the purchase of electricity from third countries," Bubnelis said.
In his words, the Lithuanian president believes the negotiations should be finished first and specific decisions and the negotiation results should be in place and only then a top-level meeting should be held and the countries' action plans should be discussed.
The Baltic leaders regularly exchange opinions on other issues and coordinate their positions, Bubnelis said.
Estonian President Kersti Kaljulaid and Latvian leader Egils Levits plan to meet on the Estonian island of Sarema on Thursday and discuss EU, regional security, environmental and other issues.
The Estonian presidential office says Nauseda "made a last-minute decision to stay home due to internal matters".