and a bus carrying "Yerkrapah" Armenian volunteers were fired. The Azerbaijani Ministry of Defence claimed that along with numerous military personnel, two high-ranking Armenian officers were killed as a result. The same day, the Armenian defence ministry announced that an Azerbaijani drone, identified as an Israeli-made IAI Harop, attacked a bus carrying Armenian volunteers enlisting in military service to the Nagorno-Karabakh town of Martakert by slamming itself against it, killing seven people aboard including the heads of two rural communities within the NKR. It is believed to be the first ever combat use of the drone anywhere. An Israeli-made ThunderB surveillance drone was shot down on 2 April according to the Artsakh defence force. Armenian officials later protested Israel's supply of weaponry to Azerbaijan. Some Azerbaijani sources claimed that Mataghis was under Azerbaijani control, citing Azerbaijan Ministry of Defence but Armenian side reported this to be false. Later, the Armenian side published a video to prove that Mataghis remained in their control. On 5 April, Azerbaijani Ministry of Defence claimed that the mutual ceasefire agreement, which was got in Moscow by the head of Azerbaijan and Armenia's Armed Forces, was breached by Armenian forces which shelled Azerbaijani positions near Tap Qaraqoyunlu with 60, 82 and 120 mm mortars. According to Azerbaijani claims Armenian Armed Forces directed high caliber artillery fire at a mosque (in Əhmədağalı, one civilian dead), schools (in Seydimli, one schoolboy injured) and residential buildings as well as civilian infrastructure. Damage to houses in Azerbaijan by Armenian artillery fire was reported in the Russian press. According to Azerbaijan, on 7 April, Armenian armed forces shelled an ambulance evacuating injured Azerbaijani civilians near Aghdara-Goranboy. Also, according to the Azerbaijani Ministry of Defence, on 7 April, an Armenian "X-55" style drone was shot down by Azerbaijani forces while trying to fly over the frontline. The Ministry of Defence of the Artsakh Republic published some aerial photos to prove that Azerbaijan deploys military units near populated areas and violated the Article 52 of Geneva Convention. During a BBC visit to Azerbaijan's side of frontline, a team of BBC journalists asked to see and ensure where the alleged military objects are placed but the Azerbaijani Ministry of Defence refused for "safety reasons". On 8 April, artillery fire was exchanged between Armenian and Azerbaijani forces, with the Armenians reporting two soldiers killed. A temporary ceasefire agreement mediated by the International Committee of the