Armenia and Azerbaijan said Friday they had sustained casualties in fighting along their common border, northwest of the breakaway region of Nagorno-Karabakh.
Armenia's Defense Ministry said two of its servicemen had been killed and another wounded in shelling near the town of Sotk. Azerbaijan said that Armenia had struck positions in the Kalbajar region using drones, wounding two Azerbaijani servicemen. It said it was taking "retaliatory measures."
Reuters was unable to verify the reports.
Nagorno-Karabakh, internationally recognized as part of Azerbaijan, has been a source of conflict between the two Caucasus neighbors since the years leading up to the collapse of the Soviet Union in 1991, and between ethnic Armenians and Turkic Azeris for well over a century.
Despite sporadic discussions on a peace deal to agree on borders, settle differences over the enclave and unfreeze relations, tensions remain high and skirmishes along the shared border are a regular occurrence.