The IS militant group has killed 1,878 people in Syria during the past six months, the majority of them civilians, a British-based calling itself Syrian Observatory for Human Rights said on Sunday.
IS also killed 120 of its own members, most of them foreign fighters trying to return home, in the last two months, the Observatory added.
The militant group has taken vast parts of Iraq and Syria and declared a caliphate in territory under its control in June. Since then it has fought the Syrian and Iraqi governments, other insurgents and Kurdish forces, Reuters wrote.
According to the Observatory’s head Rami Abdulrahman, IS killed 1,175 civilians, including eight women and four children.
He said 930 of the civilians were members of the Sheitaat, a Sunni Muslim tribe from eastern Syria which fought IS for control of two oilfields in August.
Reuters cannot independently verify the figures but IS has publicized beheadings and stoning of many people in areas it controls in Syria and Iraq.
The group, an offshoot of al Qaeda, has also released videos of executions of captured enemy fighters, activists and journalists.
It beheaded two US journalists, and one American and two British aid workers this year in attempts to put pressure on a US-led international coalition, which has been bombing its fighters in Syria since September.
Abdulrahman said IS had also executed 502 soldiers fighting for President Bashar al-Assad and 81 anti-Assad insurgents.
He said that 116 foreign fighters who had joined IS but later wanted to return home, were executed in the Syrian provinces of Deir Al-Zor, Raqqa and Hassakeh since November. Four other IS fighters were killed on other charges, Abdulrahman said.
The overwhelming number of the group’s victims have been from the Syrian population.
