The foreign policy chiefs of the OSCE Minsk Group co-chairing countries will participate in the meeting between the Armenian and Azerbaijani Presidents - Serzh Sargsyan and Ilham Aliyev - on the Nagorno Karabakh conflict, the U.S. Co-chair, ambassador James Warlick said.

The meeting is set to be held at 9:30 pm.

Meanwhile, President Sargsyan met with the EU High Representative for Foreign Affairs and Security Policy, Federica Mogherini, and will soon have a summit with the U.S. Secretary of State John Kerry.

The meeting with Kerry is to determine whether the Armenian President will meet with Aliyev.