"From the Russian side, Grigorij Karasin, who leads the international committee in the Russian Federation Council, and Sergei Beseda, an advisor to the head of the security service FSB, will participate."
The meeting was confirmed after talks with Mike Waltz, the US national security advisor, according to Usjakov. Both parties agreed to send "expert groups" to the talks, he added.
The delegations will discuss the "initiatives" that Putin and Trump previously talked about regarding the Black Sea.
Earlier in the week, US President Donald Trump spoke with both Russian President Vladimir Putin and Ukrainian President Volodymyr Zelensky about a 30-day ceasefire in the war in Ukraine.