Syria rebel infighting Sep 12, 2013 Guardian "live blog":http://www.theguardian.com/world/2013/sep/12/syria-crisis-russia-us-talks-live : "Rebel infighting":http://www.theguardian.com/world/2013/sep/12/syria-crisis-russia-us-talks-live#block-5231c654e4b00fa1bc127b1e q. Infighting between rebel forces in Syria has killed at least 50 in clashes in the country's northeast, according to the latest update from the British-based Syrian Observatory for Human Rights . It said clashes in Hassakeh province between Kurdish fighters and jihadists from the Nusra Front and the Islamic State in Iraq and the Levant left 13 Kurdish gunmen and 35 militants dead. The two sides have been fighting in northern Syria for months in clashes that left scores of people dead on both sides. q.. #syria