Turkish President Recep Tayyip Erdoğan and U.S. President Donald Trump are due to meet on the sidelines of the G20 summit in Argentina on Thursday.
The meeting is scheduled for 22:00 Argentina time, according to reports.
The two leaders had previously spoken on the phone and touched on numerous topics such as the escalation of hostilities between Russia and Ukraine in the Black Sea.
On Sunday, Russia seized two Ukrainian navy ships and a navy tugboat along with 23 crew members off Crimea, accusing Kiev of entering its waters and provoking a conflict.
It said the vessels had ignored calls to stop, sparking military action.
Russia intervened as the Ukrainian ships were relocating from the Black Sea port of Odessa to the port of Mariupol in the Sea of Azov.
Ukraine also accused Russian warships of opening fire on the ships, asserting that crew members were wounded and the vessels were seized by Russia.
Russia and Ukraine have been at loggerheads since 2014, when Russia annexed Crimea after a controversial referendum. Turkey, as well as the UN General Assembly, viewed the annexation as illegal.
This year’s Group of 20 summit, where leaders of the world’s 20 top industrialized countries will discuss issues such as trade and climate change, will be held in the Argentine capital from Nov. 30 to Dec. 1. The lockdown of parts of the city will start on Thursday night and last until Sunday.
