Estonian Prime Minister Kristen Michal, left, welcomes Ukrainian President Volodymyr Zelensky at a summit in Tallinn, Estonia, Tuesday. Photo by Valda Kalnina/EPA

June 9 (UPI) -- Ukrainian President Volodymyr Zelensky and First Lady Olena Zelenska traveled to Talinn, Estonia, Tuesday to take part in the Ukraine-Nordic-Baltic Eight summit and meet with other regional leaders.

Zelensky is boosting diplomatic efforts as he pushes for more support for Ukraine's war against Russia.

The Ukrainian president met Tuesday with Finnish Prime Minister Petteri Orpo, Latvian Prime Minister Andris Kulbergs and Swedish Prime Minister Ulf Kristersson, his spokesperson Sherhii Nykyforov told the Kyiv Independent. The meetings covered issues like strengthening Ukraine's air defense and advancing the Prioritized Ukraine Requirements List program, which allows NATO allies to finance buying of U.S. weapons.

Zelensky also met with Estonian President Alar Karis and thanked the country and others in the region for their continued support.