Saturday's reports came two days after Daesh abducted 300 cement workers and contractors from their workplace in the areas of Dumeir just northeast of the capital Damascus.

The so-called Syrian Observatory for Human Rights said all those abducted have been released except for 30 people who were guards at the cement factory, AP reported.

In a brazen assault near the Syrian capital, Daesh militants on Thursday abducted 300 cement workers and contractors in an area northeast of Damascus.

The abduction from the al-Badia Cement Company took place in Dumeir, an area where militants had launched a surprise attack against Syrian army forces earlier this week.