Yesterday, Daesh carried out mass executions in the same theater, according to Syrian state TV.
The facade of the historical building is now completely destroyed, Syrian state TV reported adding that the full scale of the damages of the theater remains unknown.
The militants also demolished Palmyra's famous "Tetrapylon", a four-column structure.
Palmyra was the capital of the Palmyrene Empire and one of the richest cities of the Roman empire. Palmyra's monuments are included in the UNESCO World Heritage list.
In December 2016, Daesh recaptured the ancient city of Palmyra in the Homs province. According to various sources, the number of terrorists that took part in the storming of the city reached 5,000 including hundreds of suicide bombers and dozens of armored vehicles.
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