At least 40,000 women and children had been killed mostly by Assad forces in the ongoing civil war between March 2011 and October 31, 2015, according to a report by Syrian Network for Human Rights.
The report announced more than 20,000 women had been killed in the civil conflict, including nearly 18,917 slaughtered by Assad regime forces while Russian forces are responsible for the death of 72 women, the report said.
42 women had been also killed by YPG militants in northern Syria.
The report also indicated more than 20,000 children had been killed in the deadly Syria war from March 2011 to October 31, 2015.
During the war, 18,853 children had been killed by the Syrian regime. Russian forces had killed 86 children with its air strikes that were launched on September 30, and YPG militants had also killed 46 children.
DAESH terrorist organisation had killed 229 children in Syria, the report also stated.
"Government forces committed large-scale massacres that took the lives of hundreds of individuals in few hours like when it shelled Al Ghouta with toxic gasses and stormed Jdaidet Al-Fadel town in Damascus suburbs, and committed other massacres in Baniyas and Al Bayda in Tartous," the Syrian Network for Human Rights report underlined.
At least 350,000 people have been killed in the four and a half year civil war in Syria.
The region, which was also targeted with chemical weapons in 2013, has been blocked and has come under intense bombardment from the Syrian army.