"We can confirm the United States received an invitation for the Syrian National Dialogue Congress in Sochi. As our focus remains on supporting Geneva and substantive progress from those negotiations, the UN must have full discretion when deciding whether separate events contribute to the Geneva process," the official said.
READ MORE: Russian Envoy Confirms Invitations Sent for Syrian National Dialogue Congress
"We do not have any further information to provide regarding US attendance or participation at this time," the department added.
The invitations to participate in the congress of the Syrian national dialogue in Sochi were sent by a special representative of the Russian president for Syria Alexander Lavrentiev on behalf of Russia, Iran and Turkey. The invitation was also sent to UN representatives and observers from Great Britain, China, the United States and France — as permanent member of the UN Security Council, as well as to Egypt, Jordan, Iraq, Kazakhstan, Lebanon and Saudi Arabia.