Ukraine's emergency services responded to fires in the Chernobyl exclusion zone on Friday, prompting Russia to announce enhanced radiation monitoring, though it stated the situation remained stable. This occurred amidst escalating tensions surrounding Russia's Victory Day celebrations, with a unilateral ceasefire called by Russia quickly collapsing, leading to mutual blame between Moscow and Kyiv. President Zelensky criticized Russia's ceasefire as a publicity stunt and noted the absence of military hardware in Moscow's parade. In parallel, Greece is investigating a Ukrainian-made naval drone found on its coast, potentially linked to targeting Russian oil ships. Russia also summoned Armenia's ambassador over President Zelensky's remarks critical of Russia's Victory Day commemorations.