"The United States, together with other co-chairs of the OSCE Minsk Group is making serious efforts to resolve the Nagorno-Karabakh conflict at the highest level," said US Ambassador to Azerbaijan Robert Cekuta, APA reports.
The diplomat reminded that yesterday US Secretary of State John Kerry discussed the Nagorno- Karabakh conflict with the Azerbaijani and Armenian presidents by telephone.
"The US as one of the states co-chairing the OSCE Minsk Group is making efforts to resolve the conflict", - he said.