More than 180,000 people have been killed in Syria since the conflict broke out in March 2011, the Syrian Observatory for Human Rights said in a new toll published Thursday. The group said 49,699 members of the armed opposition had been killed, among them fighters from jihadist groups like Al-Qaeda affiliate Al-Nusra Front and the Islamic State. The Observatory also documented the deaths of 561 members of Leba**n's Hezbollah movement, which is fighting alongside the regime, and 1,854 other **n-Syrian pro-regime fighters. The toll also includes 2,931 unidentified people whose deaths the Observatory has confirmed without being able to record their identities.