The United Nations says hundreds more people have been killed in Syria’s ongoing unrest than previously estimated. According to the United Nations, at least 2,600 have died in the six-month-old uprising and President Bashar al-Assad’s subsequent crackdown. The Syrian Human Rights Organization claims at least 113 civilians were killed in military raids in the flashpoint city of Homs last week alone. On Sunday, the Syrian Observatory for Human Rights claimed the Assad government had severely beaten prominent rights campaigner Najati Tayara, leaving him in “very bad” condition. Meanwhile, the United States has condemned the Syrian government for the death of 26-year-old Ghiyath Matar. Matar was arrested by Assad’s forces on Sept. 6 after playing a key role in organizing protests against the government. He died while in detention. Activists claim he had wounds on his chest and face.