A view shows a damaged house in Martakert province, which according to Armenian media was affected by clashes over the breakaway Nagorno-Karabakh region, April 4, 2016. (Photo by Vahan Stepanyan/Reuters/PAN Photo)





Soldiers of the self-defense army of Nagorno-Karabakh gather at their positions in Martakert province, which according to Armenian media was affected by clashes over the breakaway Nagorno-Karabakh region, April 4, 2016. (Photo by Vahan Stepanyan/Reuters/PAN Photo)





Soldiers of the self-defense army of Nagorno-Karabakh gather at their positions in Martakert province, which according to Armenian media was affected by clashes over the breakaway Nagorno-Karabakh region, April 4, 2016. (Photo by Vahan Stepanyan/Reuters/PAN Photo)





People surround a coffin with the body of an Armenian serviceman, who was killed in clashes over the breakaway Nagorno-Karabakh region according to Armenian media, during a memorial service at a church in Yerevan, Armenia, April 5, 2016. (Photo by Hrant Khachatryan/Reuters/PAN Photo)





A tank of the self-defense army of Nagorno-Karabakh moves on the road in the village of Talish April 6, 2016. (Photo by Reuters/Staff)





A tank of the self-defense army of Nagorno-Karabakh moves on the road in the village of Talish April 6, 2016. (Photo by Reuters/Staff)





A tank of the self-defense army of Nagorno-Karabakh moves on the road near the village of Mataghis April 6, 2016. (Photo by Reuters/Staff)





Servicemen of the self-defense army of Nagorno-Karabakh rest at their positions near the village of Mataghis April 6, 2016. (Photo by Reuters/Staff)





Servicemen of the self-defense army of Nagorno-Karabakh walk at a military base in the village of Mataghis April 6, 2016. (Photo by Reuters/Staff)





Servicemen of the self-defense army of Nagorno-Karabakh rest at their position in the village of Talish April 6, 2016. (Photo by Reuters/Staff)





A serviceman of the self-defense army of Nagorno-Karabakh stands next to a destroyed military car in the village of Talish April 6, 2016. (Photo by Reuters/Staff)





Servicemen of the self-defense army of Nagorno-Karabakh walk near their positions in the village of Talish April 6, 2016. (Photo by Reuters/Staff)





A serviceman of the self-defense army of Nagorno-Karabakh stands next to a destroyed military car in the village of Talish April 6, 2016. (Photo by Reuters/Staff)





Local residents carry their belongings as they flee from the Nagorno-Karabakh's village of Talish April 6, 2016. (Photo by Reuters/Staff)





A car hit by shrapnel is seen in the Nagorno-Karabakh's village of Talish April 6, 2016. (Photo by Reuters/Staff)





Local residents wait in a car as they flee from the Nagorno-Karabakh's village of Talish April 6, 2016. (Photo by Reuters/Staff)





A volunteer walks on a road in the Nagorno-Karabakh's village of Talish April 6, 2016. (Photo by Reuters/Staff)





A tank of the self-defense army of Nagorno-Karabakh moves on the road near the village of Mataghis April 6, 2016. (Photo by Reuters/Staff)





Armenian soldiers pose near a frontline in Nagorno-Karabakh, Azerbaijan, Wednesday, April 6, 2016. A cease-fire largely held Wednesday around Nagorno-Karabakh after an outburst of fighting that raised fears of a new all-out war between Azerbaijani and Armenian forces. (Photo by Karo Sahakyan/PAN Photo via AP Photo)





The body of an Azerbaijani soldier lies at a frontline in Nagorno-Karabakh, Azerbaijan, Wednesday, April 6, 2016. (Photo by Karo Sahakyan/PAN Photo via AP Photo)





Armenian soldiers pose near a frontline in Nagorno-Karabakh, Azerbaijan, Wednesday, April 6, 2016. (Photo by Karo Sahakyan/PAN Photo via AP Photo)





Ethnic Armenian fighters stand in backs of Kamaz military trucks on their way to a frontline at Martakert province in the separatist region of Nagorno-Karabakh, Azerbaijan, Monday, April 4, 2016. Fighting raged Monday around Nagorno-Karabakh, with Azerbaijan saying it lost three of its troops in the separatist region while inflicting heavy casualties on Armenian forces and the Armenian president warning that the hostilities could slide into a full-scale war. (Photo by Hrayr Badalyan/PAN Photo via AP Photo)





Ethnic Armenian fighters armed with a Kalashnikov machine gun stand at their positions on a road at Martakert province in the separatist region of Nagorno-Karabakh, Azerbaijan, Monday, April 4, 2016. (Photo by Vahan Stepanyan/PAN Photo via AP Photo)





Ethnic Armenian fighters Avanesyan Vahe, 27, left, and Gasparyan Harutyun, 19, rest at their artillery positions at Martakert province in the separatist region of Nagorno-Karabakh, Azerbaijan, Monday, April 4, 2016. (Photo by Vahan Stepanyan/PAN Photo via AP Photo)





An ethnic Armenian fighter carries Kalashnikov machine guns to his comrade-in-arms at Martakert province in the separatist region of Nagorno-Karabakh, Azerbaijan, Monday, April 4, 2016. (Photo by Vahan Stepanyan/PAN Photo via AP Photo)





In this frame grab made from a video provided by the Karabakh Forces, Monday, April 4, 2016, a drone burns after it was downed by Armenian forces in Nagorno-Karabakh, Azerbaijan. Azerbaijan and separatist forces agreed on a cease-fire starting noon local time Tuesday, following three days of heavy fighting in the disputed region, the Azeri defense ministry announced. (Photo by Karabakh Forces Photo via AP Photo)





An ethnic Armenian man walks past a destroyed house during the fighting in Martakert province in the separatist region of Nagorno-Karabakh, Azerbaijan, Monday, April 4, 2016. (Photo by Vahan Stepanyan/PAN Photo via AP Photo)





Vagho Beglaryan, 92, an elderly ethnic Armenian man stands in the center of an empty street between abandoned and destroyed houses during the fighting in Martakert province in the separatist region of Nagorno-Karabakh, Azerbaijan, Monday, April 4, 2016. (Photo by Vahan Stepanyan/PAN Photo via AP Photo)





Karabakh Armenian soldiers stand near a howitzer in Hadrut province in Nagorno-Karabakh, Azerbaijan, Tuesday, April 5, 2016. Azerbaijan forces and separatist forces in Nagorno-Karabakh agreed on a cease-fire Tuesday following three days of the heaviest fighting in the region since 1994, the Azeri defense ministry announced. (Photo by Albert Khachatryan/Photolure via AP Photo)





Nagorno-Karabakh army self-propelled artillery vehicles stand on positions in Nagorno-Karabakh, Azerbaijan, Tuesday, April 5, 2016. Azerbaijan forces and separatist forces in Nagorno-Karabakh agreed on a cease-fire Tuesday following three days of the heaviest fighting in the region since 1994, the Azeri defense ministry announced.. (Photo by Vahan Stepanyan/PAN Photo via AP Photo)





Elmar Abdullayev, 55, stands at a gates of his home hit by shelling in a village of Gapinli, in Terter region of Azerbaijan on Tuesday, April 5, 2016. Azerbaijan and separatist forces in Nagorno-Karabakhk on Tuesday agreed on a cease-fire starting noon local time following three days of the heaviest fighting in the disputed region since 1994, the Azeri defense ministry announced. Gapanli, a village south of Terter, has been one of the hardest hit. Houses bear the marks of the recent shelling; metal doors are riddled with shrapnel, power lines are cut down, craters are seen in the yards. (Photo by Hicran Babayev/AP Photo)





Nagorno-Karabakh army artillerymen prepare to open fire from a howitzer on positions in Nagorno-Karabakh, Azerbaijan, Tuesday, April 5, 2016. (Photo by Vahan Stepanyan/PAN Photo via AP Photo)





In this grab taken from Associated Press Television footage made available on Monday, April 4, 2016, Armenian soldiers pass a Grad missile launcher on Sunday, April 3, 2016, in the village of Mardakert, in the separatist region forces of Nagorno-Karabakh. Azerbaijan's defense ministry says three of its troops have been killed in the past 24 hours in fighting with the separatist region of Nagorno-Karabakh. The defense ministry in a statement early on Monday accused Armenia of shelling its position and front-line villages despite the cease-fire his government unilaterally announced. (Photo by Associated Press Television via AP Photo)





In this photo taken Saturday, April 2, 2016, an Armenian volunteer is in a state of readiness in the town of Askeran in the separatist Nagorno-Karabakh region. Officials in Azerbaijan and the separatist region of Nagorno-Karabakh say fighting is persisting a day after the worst outburst of hostilities in nearly 20 years killed 30 soldiers. Nagorno-Karabakh, part of Azerbaijan, has been under the control of local ethnic Armenian forces and the Armenian military since a war ended in 1994 with no resolution of the region's status. (Photo by Hrayr Badalyan/PAN Photo via AP Photo)





People react during a funeral for 12-year-old Vagharshak Grigoryan in a village of Martuni region of the separatist Nagorno-Karabakh region, Azerbaijan, on Monday, April 4, 2016. Grigoryan was one the first victims of the clashes that erupted between Armenian and Azerbaijani forces on April 2, 2016 as part of a territorial conflict between Armenia and Azerbaijan. Azerbaijan's defense ministry says three of its troops have been killed in the past 24 hours in fighting with the separatist region of Nagorno-Karabakh. The defense ministry in a statement early on Monday accused Armenia of shelling its position and front-line villages despite the cease-fire his government unilaterally announced. (Photo by Vahram Baghdasaryan/Photolure Photo via AP Photo)





An Armenian covers his ears while a howitzer fires at an artillery position of the self-defense army of Nagorno-Karabakh near Martakert, Azerbaijan, Sunday, April 3, 2016. (Photo by Vahram Baghdasaryan/Photolure Photo via AP Photo)





In this photo taken Saturday, April 2, 2016, Armenian volunteers are in a state of readiness in the town of Askeran in the separatist Nagorno-Karabakh region. (Photo by Hrayr Badalyan/PAN Photo via AP Photo)





In this grab taken from Associated Press Television footage made available on Monday, April 4, 2016, Armenian soldiers aim a howitzer on Sunday, April 3, 2016, in the village of Mardakert, in the separatist region of Nagorno-Karabakh. (Photo by Associated Press Television via AP Photo)





In this grab taken from Associated Press Television footage made available on Monday, April 4, 2016, a house ruined by shelling on Sunday, April 3, 2016, in the village of Mardakert, in the separatist region of Nagorno-Karabakh. (Photo by Associated Press Television via AP Photo)





A relative mourns during a farewell ceremony for Pvt. Sasun Mkrtchyan, Armenian serviceman who was killed during fighting in the separatist region of Nagorno-Karabakh, in Yerevan, Armenia, Monday, April 4, 2016. Fighting raged Monday around the separatist region of Nagorno-Karabakh, with Azerbaijan saying three of its troops have been killed in the past 24 hours and the Armenian president warning that the hostilities could slide into a full-scale war. (Varo Rafayelyan/ PAN Photo via AP)