"The fighting for the al-Tarr hill two kilometers from the Palmyra Citadel. The capture of this hill will allow the government troops to cut terrorist supply lines from the Raqqa province and ultimately facilitate the capture of the citadel," the source told RIA Novosti.
According to the source, militants have attempted to counterattack the Syrian Army positions south of Palmyra but all the attacks were successfully repelled.
The ancient Syrian city of Palmyra is a UNESCO World Heritage site.
Islamic State jihadist group militants have destroyed multiple sites of historic architecture in Palmyra, including its ancient temples of Bel and Baalshamin, since they captured the city in May.