The London-based Syrian Observatory for Human Rights (SOHR) said on Thursday that three people were killed when mines planted by Daesh exploded in Al Raqqa city.
The US- backed Syrian Democratic Forces (SDF) destroyed a lab for manufacturing mines affiliated to Daesh in central Al Raqqa city, observatory added. 
Fierce clashes took place between the US-backed (SDF) and Daesh in several locations of Al Raqqa city and the US coalition troops hit areas under Daesh control, reported Al Hurra news channel quoting the observatory as saying.
The observatory noted that the Syrian army shelled several sites at Jobar district in eastern Damascus while clashes continued between the Syrian army and Faylaq al-Rahman terrorist group at Ein Tarma valley and western outskirts of Eastern Ghouta.

Source: Mena