The presidents of the Baltic states and Poland are on their way to the Ukrainian capital, Kyiv, to meet with President Volodymyr Zelensky.
The party includes Polish President Andrzej Duda, Lithuanian President Gitanas Nausėda, Latvian President Egils Levits and Estonian President Alar Karis, according to a Twitter post from Karis on Wednesday.
They will meet with Zelensky during their visit to "show strong support to Ukrainian people," Karis said.
Key topics to be discussed in the meeting will be providing aid to Ukrainian civilians and defenders and the investigation of alleged war crimes, according to Estonia's presidential office.
President Karis will return to Estonia on Thursday, his presidential office said in a statement.