ISTANBUL - Ukraine and Russia will resume negotiations on Monday in Istanbul as diplomatic efforts to end the conflict continue, Turkish authorities announced on Sunday.

According to the Turkish presidential office, the delegations are scheduled to meet at 1:00 pm local time (1000 GMT) at the Ciragan Palace on the European side of the city, along the shores of the Bosphorus Strait.

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The two countries held their latest round of direct talks on May 16 -- their first face-to-face negotiations since March 2022 -- in Istanbul, but the meeting ended without a ceasefire agreement.

Also on Sunday, Ukraine carried out drone attacks targeting airfields in multiple Russian regions, the Russian Defense Ministry said.

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According to the ministry, the attacks were repelled in the regions of Ivanovo, Ryazan, and Amur. In the Murmansk and Irkutsk regions, drones launched from areas near the airfields caused several aircraft to catch fire.

The ministry added that there were no casualties among military personnel or civilian staff.