On the night of September 13, the Azerbaijani Defense Ministry reported that on the night of September 12 and the morning of September 13, Armenian armed forces committed a large-scale provocation in Dashkasan, Kalbajar, Lachin, and Zangilan directions of the Azerbaijan-Armenia state border.

The Ministry reported that 50 military personnel of the Armed Forces, including 42 military personnel from the Azerbaijan Army and 8 military personnel from the State Border Service, were killed while preventing a large-scale provocation.

"We offer our deepest condolences to the families and relatives of our martyred servicemen; we wish God's healing to our wounded. The blood of our martyrs did not remain on the ground. We inform you that the list of the names of our martyred servicemen will be presented to the public in addition," the information said.

On the same day, Armenian Prime Minister Nikol Pashinyan announced in an address to parliament that Armenia had 49 casualties confirmed by the Defense Ministry. However, that number is not final. "As of 11 am local time, the intensity of combat operations has decreased, but Azerbaijan's attacks continue in one or two directions," Pashinyan added.