But hurdles remain. Azerbaijan also said Armenia’s constitution must “eliminate the claims against the sovereignty and territorial integrity of Azerbaijan,” as a prerequisite to allow for the signing of the peace treaty.

Armenian and Azerbaijani officials said on Thursday that they had agreed the text of a peace agreement to end nearly four decades of conflict between the South Caucasus countries, a sudden breakthrough in a fitful and often bitter peace process.

Azerbaijan has accused Armenian forces of firing on its positions from Armenia's southern Syunik province. This accusation follows recent negotiations between the two nations, agreeing to a peace treaty aimed at ending decades-long conflict.