The United States is deeply concerned about the intense fighting around Nagorno-Karabakh, said US State Department Speaker Ned Price. The United States is deeply concerned and is closely following information regarding the intense fighting around Nagorno-Karabakh, which has resulted in loss of life and injury. The recent rise in tension underscores the need for a negotiated, comprehensive and stable solution to all issues related to or arising from the Nagorno-Karabakh conflict, the State Department spokesman said in a statement.