The situation in the disputed Nagorno-Karabakh region escalated on Sept 27 / REUTERS

Ukraine's Ministry of Foreign Affairs (MFA) says it is deeply concerned about the escalation of the conflict between Armenia and Azerbaijan.

"MFA of Ukraine is deeply concerned about the escalation of the conflict btw Armenia & Azerbaijan. We examine circumstances that led to [the] escalation, call on the parties to return to the dialogue & settle the conflict by peaceful means. Our thoughts are with the relatives of victims," the ministry said in a statement on Twitter on September 27.

New hostilities between Armenian and Azerbaijani forces over the disputed Nagorno-Karabakh region were reported on September 27.

Read alsoNew hostilities erupt along Armenia-Azerbaijan border; civilian, military casualties reported (Photos, video)

War in Nagorno-Karabakh: Past developments

  • The conflict between Azerbaijan and Armenia over Nagorno-Karabakh region began in 1988, when the predominantly Armenian-populated Nagorno-Karabakh Autonomous Oblast announced its withdrawal from the Azerbaijan Soviet Socialist Republic.
  • In 1991-1994, the bloodshed conflict continued in the region, which ended with the signing of a ceasefire protocol. Nagorno-Karabakh proclaimed itself an independent "republic." Azerbaijan did not recognize this, considering the territory to have been occupied by Armenia.
  • From time to time, clashes still erupt along the line of contact.