Syrians reportedly suffering from breathing difficulties following Syrian regime air strikes on the northwestern town of Saraqeb rest  at a field hospital.  Photograph: Omar Hajkadour/AFP/Getty

The UN called for a one-month truce to deliver aid to Syria as Russian-backed government forces pummelled rebel-held pockets. Opposition activists say(...)

People fleeing the Islamic State stronghold of Raqqa in an area near the village of Balaban, south of Jarablus, Syria, on June 8th. Photograph: Zein al-Rifai/EPA

Intensified coalition air strikes supporting an assault by US-backed forces on Islamic State’s stronghold of Raqqa in Syria are causing a “staggering (...)

Syrians fill containers with water at a public fountain in Damascus in January, after the regime of President Bashar al-Assad bombed the source of  the capital’s main drinking water. Photograph: Louai Beshara/AFP/Getty Images

Syria’s air force deliberately bombed water sources in December, a war crime that cut off water for 5.5 million people in and around the capital Damas(...)

File photograph of Syrian government soldiers  in the historic city of Palmyra. File photograph: Omar Sanadiki/Reuters

Russian-backed Syrian government forces and their allies fought their way into Palmyra on Wednesday, driving back Islamic State militants who have hel(...)

A rebel fighter from the Free Syrian Army’s Al Rahman legion covers his ears during the launching of a mortar at the frontline against forces loyal to Syria’s president Bashar al-Assad in the besieged town of Arbeen in the eastern Ghouta of Damascus. Photograph: Yousef Homs/Reuters.

United Nations war crimes investigators plan to publish names of suspects involved in Syria’s four-year war and push for new ways to bring them to ju(...)

A Free Syrian Army fighter rests near some weapons in Aleppo today. The UN has said evidence collected by its investigators looking into Syrian war crimes implicates president Bashar al-Assad. Photograph: Molhem Barakat/Reuters.

Evidence collected by UN investigators looking into Syrian war crimes implicates president Bashar al-Assad, United Nations human rights chief Navi Pil(...)

Smoke rises from behind a building in Jobar, Damascus. Most of the 100,000-plus killed since early 2011 have died by what could be described as more conventional means: including aerial bombardment, shelling and sniper fire. Photograph: Msallam Abd Albaset/Reuters

Almost lost in the debate over the now confirmed use of chemical weapons in Damascus last month is the fact that only a fraction of Syria’s war dead h(...)

A boy looks at drawings on a wall in Raqqa province in east Syria yesterday. One drawing reads: “Homs is bleeding”. Photograph: Reuters/Nour Kelze

UN human rights investigators say the conflict in Syria has reached new “levels of brutality” as war crimes, crimes against humanity and massive human(...)

A boy looks at the drawings on a wall in Raqqa province, east Syria, June 4, 2013. The drawing reads ’ Homs is bleeding’. Photograph:Nour Kelze /Reuters

France said today it was certain that the nerve agent sarin has been used in Syria on several occasions following tests it has carried out on samples (...)