“I am not aware of any negotiations with the Russians regarding Turkish operations in Syria,” RIA Novosti quotes him as saying during a briefing.
Kirby noted that the US recognizes Turkey's right to ensure its own security.
Earlier, Turkish leader Recep Tayyip Erdogan said that Turkey does not rule out a ground operation in Syria and Iraq after its air part.
The Central Command (CENTCOM) of the US Armed Forces said that Washington opposes any military action leading to the destabilization of the situation in Syria.