The armed forces of Armenia, located in the village of Berkaber in Armenia's Ijevan region, opened fire at the positions of the Azerbaijani armed forces located in village of Qizilhajili in the Qazakh region, the Azerbaijani defense ministry said on May 15.
The Azerbaijani positions also took fire from positions located near the villages of Qarakhanbayli, Ashagi Seyidahmadli in the Fizuli region and Shuraabad in the Agdam region.
The Armenian side was silenced with return fire.
The conflict between the two South Caucasus countries began in 1988 when Armenia made territorial claims against Azerbaijan. As a result of the ensuing war, in 1992 Armenian armed forces occupied 20 percent of Azerbaijan, including the Nagorno-Karabakh region and seven surrounding districts.
The two countries signed a ceasefire agreement in 1994. The co-chairs of the OSCE Minsk Group, Russia, France and the U.S. are currently holding peace negotiations.
Armenia has not yet implemented the U.N. Security Council's four resolutions on the liberation of the Nagorno-Karabakh and the surrounding regions.