On August 29, 2022, Ambassador of Türkiye to Ukraine Yagmur Ahmet Guldere was invited to the Ministry of Foreign Affairs.

The Deputy Minister of Foreign Affairs of Ukraine Mykola Tochytskyi expressed to the Ambassador of Türkiye the concern of the Ukrainian Side in connection with the available information regarding the transportation of S-300 missile systems from Syria to Russia via the Bosphorus Strait by the ship "Sparta II" chartered by Russian ministry of defense.

The Turkish Embassy was handed a verbal note of the Ministry of Foreign Affairs on the raised issue.

The Deputy Minister of Foreign Affairs of Ukraine drew the attention of the Ambassador of Türkiye to the fact that, according to the provisions of the Convention regarding the Regime of the Straits of July 20, 1936, the specified vessel falls under the definition of a warship for the purposes of this Convention.

M.Tochytskyi requested the Turkish side to provide official information regarding the cargo that was transported by the ship "Sparta II" through the Bosphorus Strait, as well as regarding the measures taken by Türkiye in order to fulfill the provisions of the Convention and prevent further escalation of the Russian-Ukrainian war.

The Deputy Minister expressed the hope that the Turkish side will strictly adhere to its decision of February 28, 2022 to close the Black Sea straits for Russian warships during the Russian-Ukrainian war in line with the consistent position of the Republic of Türkiye to support the sovereignty and territorial integrity of Ukraine in its internationally recognized borders.