Azerbaijan has called on international community to demand from Armenia to cease the occupation of the Azerbaijani lands. "Azerbaijan calls the international community to demand from Armenia to cease the illegal occupation of Azerbaijan's territories, to withdraw its troops from all occupied lands and to engage constructively in the conflict settlement process in accordance with the requirements of relevant resolutions of the UNSC and the norms and principles of international law," Azerbaijan's Foreign Minister Elmar Mammadyarov said Apr. 12. He was addressing a meeting of the OIC Foreign Ministers in Turkey's Istanbul. "On April 2, 2016 Armenia once again confirmed its strong commitment to destructive policy in the negotiation process of Armenia-Azerbaijan Nagorno-Karabakh conflict by flagrantly violating ceasefire and shelling at the positions of Azerbaijani army and densely populated residential areas along the contact line," said the minister. "This provocative act received an adequate response from the Azerbaijani army which launched counter-attacks and repulsed Armenian forces." On the night of April 2, 2016, all the frontier positions of Azerbaijan were subjected to heavy fire from the Armenian side, which used large-caliber weapons, mortars and grenade launchers. The armed clashes resulted in deaths and injuries among the Azerbaijani population. Azerbaijan responded with a counter-attack, which led to liberation of several strategic heights and settlements. Military operations were stopped on the line of contact between Azerbaijani and Armenian armies on Apr. 5 at 12:00 (UTC/GMT + 4 hours) with the consent of the sides, Azerbaijan's Defense Ministry earlier said. Ignoring the agreement, the Armenian side again started violating the ceasefire. Today Armenia continues violating ceasefire regime and diverting attention from the substantive issues needed for peace process by this demonstrating to the world its main intentions, Mammadyarov said. Azerbaijani foreign minister extended the country's sincere gratitude to OIC Secretary General and member states for the support to the sovereignty and territorial integrity of Azerbaijan and condemnation of the Armenian aggression and occupation of the country's territories. It was decided to establish a Contact group on the settlement of the Armenian-Azerbaijani Nagorno-Karabakh conflict at the meeting of the OIC Foreign Ministers in Turkey's Istanbul Apr. 12. The conflict between the two South Caucasus countries began in 1988 when Armenia made territorial claims against Azerbaijan. As a result of the ensuing war, in 1992 Armenian armed forces occupied 20 percent of Azerbaijan, including the Nagorno-Karabakh region and seven surrounding districts. The 1994 ceasefire agreement was followed by peace negotiations. Armenia has not yet implemented four UN Security Council resolutions on withdrawal of its armed forces from the Nagorno-Karabakh and the surrounding districts.