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STORY: Kallas' comment follows the International Olympic Committee's (IOC) announcement last week that athletes from the two countries, banned from competitions in Europe, might be allowed to earn slots for the Olympics by qualifying through Asian events.

However, the IOC later said it was standing by sanctions imposed against Russia and Belarus.

"Our efforts should be on convincing other friends and allies that participation of Russian and Belarusian athletes is just wrong. Boycotting is the next step, " Kallas said after meeting her Latvian and Lithuanian counterparts in Tallinn.

Baltic and Polish sports ministers have also called on international sports bodies for a similar ban amid a war in Ukraine, while Latvia and Kyiv have threatened to boycott the Games.