The Russian side does not rule out that Turkish President Recep Tayyip Erdogan may raise the issue of aggravation of the situation in Nagorno-Karabakh (Artsakh) during the meeting of the Russian and Ukrainian delegations, which have arrived in Istanbul for talks. A Russian source familiar with the course of these talks told TASS about this.

"Maybe only by Erdogan. It does not refer to the Ukrainians, but he may try to discuss it with us," said the agency's interlocutor. “Frankly, I do not think there will be enough time [for that during the talks]."