On September 13, a phone conversation took place between Jeyhun Bayramov, Minister of Foreign Affairs of the Republic of Azerbaijan, and Karen Donfried, Assistant Secretary of State of the United States of America for European and Eurasian Affairs, the Press Office of the Azerbaijani Foreign Ministry reported. According to the press office, the ongoing clashes and tension resulting from large-scale provocation by Armenia were discussed during the phone conversation. "Minister Jeyhun Bayramov informed the counterpart about the large-scale provocations of the armed forces of Armenia in the Azerbaijan-Armenia border areas, as well as the measures taken to prevent military threats to the territory and sovereignty of our country and to ensure the safety of our military personnel, including civilian workers involved in infrastructure works. The Minister emphasized that the fact of Armenia’s regular opening of fires at our positions and civilian population over the past month, increasing militarization along the borders of Azerbaijan, and continuing planting of landmines of territories is an indication that Armenia has been preparing for a large-scale military provocation," the report said. "It was informed that Azerbaijan is not interested in increasing military tension at a time when Azerbaijan was carrying out large-scale restoration and construction works in these territories liberated from the occupation," the Ministry stated. Karen Donfried expressed her concern about the growing tension and military clashes in the region and called for an immediate cessation of hostilities.

On the same day, Jeyhun Bayramov had a telephone conversation with Mevlüt Çavuşoğlu, the Minister of Foreign Affairs of the Republic of Turkey. "Minister Jeyhun Bayramov gave detailed information to the Turkish side about the large-scale provocations of Armenia on the Azerbaijan-Armenia border starting at night on September 12 during a telephone conversation. It was brought to attention that Armenia fired on Azerbaijani positions, continued mining Azerbaijani territories, and expanded the process of militarization in the region during the last month. In order to prevent the provocation of the armed forces of Armenia and military threats against the territorial integrity and sovereignty of our country and to ensure the safety of our military personnel and civilian workers involved in infrastructure works, it was stated that the units of the Azerbaijan Army took decisive response measures," the report added. "Turkish Foreign Minister Mevlüt Çavuşoğlu stressed that military tensions and provocations are a cause for concern, and the importance of Armenia fully fulfilling its obligations within the framework of the agreements reached," the Azerbaijani Foreign Ministry stated.

On September 13, Foreign Minister of Armenia Ararat Mirzoyan also had a phone conversation with Karen Donfried, the Press Office of the Armenian Foreign Ministry reported. Ararat Mirzoyan presented to Karen Donfried the situation resulting from the aggression unleashed by the armed forces of Azerbaijan against the sovereign territory of Armenia at midnight, September 13. Minister Mirzoyan stressed the urgency of a targeted and adequate response from the international community to the aggressive and provocative actions of Azerbaijan. The Foreign Minister of Armenia emphasized that the Armenian side will make every effort to repel the Azerbaijani aggression.

On the same day, Ararat Mirzoyan held a phone conversation with Foreign Minister of the Russian Federation Sergey Lavrov. Minister Mirzoyan presented the situation in the Armenian-Azerbaijani border area resulting from the large-scale aggression launched by the Azerbaijani armed forces at midnight on September 13. Ararat Mirzoyan briefed on the steps undertaken by the Republic of Armenia, including the appeal to the Russian Federation, the Collective Security Treaty Organization, and the UN Security Council, aimed at halting the Azerbaijani aggression and eliminating its consequences.

On September 13, the Foreign Minister of Armenia spoke with Valeriy Semerikov, the Deputy Secretary General of the Collective Security Treaty Organization (CSTO). Minister Mirzoyan presented to his interlocutor the situation on the Armenian-Azerbaijani border resulting from the large-scale aggression unleashed by Azerbaijan at midnight on September 13. The parties discussed the prospects of implementing the existing CSTO mechanisms.

Armenian Prime Minister Nikol Pashinyan has conducted several phone calls with regional and world leaders 

On the night of September 13, Nikol Pashinyan had a telephone conversation with the President of the Russian Federation Vladimir Putin, the Press Office of the Armenian Prime Minister reported. The Prime Minister provided details about the provocative, aggressive actions by the Azerbaijani armed forces in the direction of the sovereign territory of Armenia starting from midnight, which were accompanied by artillery shelling and fire from large-caliber firearms. Nikol Pashinyan considered the actions of the Azerbaijani side unacceptable and emphasized the importance of an adequate reaction from the international community. The interlocutors agreed to keep in operational contact.

In the same hours, the Armenian Prime Minister held a telephone conversation with French President Emmanuel Macron. The Prime Minister of Armenia informed that starting from midnight Azerbaijan started provocative and aggressive military operations against the sovereign territory of Armenia in different directions of the border. Nikol Pashinyan expressed deep concern about the situation and emphasized the importance of adequate reaction from the international community. President Macron considered a further escalation of tension unacceptable and stressed the need to de-escalate the situation.

On the morning of September 13, the head of Armenia had a telephone conversation with US Secretary of State Antony Blinken. The Prime Minister presented details about the aggression launched by Azerbaijan against the sovereign territory of Armenia. Nikol Pashinyan informed that in connection with the ongoing actions, a decision had been made to officially apply to the Russian Federation Council for the implementation of the provisions of the Treaty of Friendship, Cooperation, and Mutual Assistance, to the Collective Security Treaty Organization and the UN Security Council. In this context, Prime Minister Pashinyan expressed hope for an adequate reaction from the international community. Antony Blinken expressed the deep concern of the American side regarding the situation. He considered the further escalation of the situation inadmissible. He expressed the readiness of the USA to make efforts to stabilize the situation.

On the same day, Nikol Pashinyan held a telephone conversation with the President of the European Council Charles Michel. The Prime Minister presented in detail the situation created as a result of the aggression of Azerbaijan against the sovereign territory of Armenia. Charles Michel noted that the region has no alternative to peace and stability. He expressed readiness to make efforts to prevent further escalation.

Armenian Prime Minister had a telephone conversation with the President of the Islamic Republic of Iran Sayyid Ebrahim Raisi. The Prime Minister gave details about the provocative and aggressive actions being carried out by the armed forces of Azerbaijan against the sovereign territory of Armenia. Ebrahim Raisi noted that a new war in the South Caucasus region is unacceptable, and Iran is carefully following the developments. The President of Iran emphasized that all conflicts in the region should be resolved peacefully, and Iran's position regarding the territorial integrity of states is clear. The President of Iran recalled the words of the Supreme Leader of the Islamic Revolution, Ayatollah Khamenei, according to which Iran's connection with Armenia should not be endangered, and the communication channels should be under the sovereignty of the states. Ebrahim Raisi stressed that his country is ready to support the establishment of peace in the region, adding that the issue of Armenia's security is important for Iran.