The Syrian Observatory for Human Rights told AFP that regime troops had pulled back from positions in and around Palmyra, including from an army intelligence outpost, a military airport and a prison which the jihadists captured overnight.
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Clashes since Wednesday had killed at least 100 pro-government fighters, he said. Pro-government forces have withdrawn, according to Syrian state media.
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Abdulrahman, who bases his information on a network of sources on the ground, said there were so far no reports of destruction of the city's historic artefacts.
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