National Security Adviser Jake Sullivan on Wednesday, December 15 expressed concern over ongoing tensions between Armenia and Azerbaijan.

Sullivan made the comments at a meeting with National Security Council Secretary Armen Grigoryan of Armenia and conveyed the commitment of the United States to peace, security, and prosperity in Armenia and the South Caucasus region.

"He expressed concern over ongoing tensions between Armenia and Azerbaijan, and emphasized that military movements near un-demarcated borders are irresponsible and provocative," the White House said in a statement.

Azerbaijani forces violated Armenia’s border in several sections in the provinces of Syunik and Gegharkunik on May 12 and 13 and are still refusing to withdraw their troops from the area. On November 16, the Azerbaijani side launched a fresh offensive in the province of Syunik, during which Armenian soldiers were killed and taken captive.

"He welcomed the ongoing communication between the two sides and emphasized the U.S. commitment to continue supporting confidence-building measures and regional reconciliation both bilaterally and as a Minsk Group Co-Chair."

Sullivan also welcomed the announcement that Turkey and Armenia will appoint special envoys to discuss the normalization process.

He "appreciated Prime Minister Nikol Pashinyan’s participation in The Summit for Democracy and underscored our strong cooperation on reform, democratic institution-building, and economic development in Armenia."