According to Ukrinform, Sybiha shared details of the conversation in a post on X.
During the conversation, Sybiha thanked Greece for its solidarity with Ukraine and its people.
"I drew my colleague's particular attention to security in the Black Sea. Russia's continued attacks on Ukrainian ports, maritime infrastructure, and civilian vessels pose a direct threat to freedom of navigation, international trade, and global food security," he wrote.
Read also:Sybiha thanks Switzerland for funding preservation of Lavra monastery in Kyiv
Sybiha said he also briefed his Greek counterpart on Ukraine's urgent needs for air defense systems.
"I briefed my colleague on the consequences of Russia's constant attacks on Ukrainian cities and infrastructure. The growing scale of Russian missile and drone terror makes strengthening the protection of Ukraine's skies an urgent priority," Sybiha wrote.
According to the minister, for Ukraine and Greece, two maritime nations, freedom of navigation is a matter of principle and security. "Russia is trying to turn the Black Sea – a vital artery connecting countries, markets, and people – into another instrument of pressure and intimidation. We share an interest in keeping it open, secure, and free for maritime navigation," Sybiha said.
"We exchanged views on the current situation and key priorities of our bilateral cooperation and broader international engagement, and agreed to remain in close contact," Sybiha added.
As reported, Turkey is restricting the movement of commercial vessels toward the Black Sea amid an increase in the number of attacks in the region.