Kurdish People’s Protection Units (YPG) fighters stand at the Syrian-Turkish border crossing of Tel Abyad, as vehicles transport people who were wounded in violence, which activists said was caused by Islamic State fighters in Kobani, Syria on Thursday. Photograph: Rodi Said/Reuters

Islamic State fighters launched simultaneous attacks against the Syrian government and Kurdish militia overnight, moving back onto the offensive after(...)

A Syrian refugee from the northern Syrian town of Tel Abyad and her children  waiting for aid in Akcakale, Sanliurfa province, Turkey. Photograph: Umit Bektas/Reuters

Islamic State (IS) fighters are preventing fuel shipments from reaching rebel-held parts of northern Syria, causing severe shortages that are paralysi(...)

Syrian Kurdish fighters celebrate on Monday after wresting Tal Abyad from Islamic State. Photograph: Rodi Said/Reuters

Islamic State fighters have been expelled from the strategic town of Tal Abyad by a Syrian Kurdish militia bolstered by US air cover. Commander Husey(...)

 Syrian refugees waiting on the Syrian side of the border crossing  near Akcakale, in Turkey’s Sanliurfa province, on Wednesday. Iran has denied it has deployed troops in Syria to bolster the Syrian army and its militia allies although this has been widely reported in the Syrian media. Photograph: Sedat Suna/EPA

UN special envoy Staffan de Mistura estimates that Iran spends $6 billion (€5.3 billion) a year to sustain the Syrian regime. This figure apparently e(...)

Fighters from a coalition of rebel groups called “Jaish al Fateh” in an underpass near Psoncol, in the Idlib countryside, Syria. Photograph: Mohamad Bayoush/Reuters

Thousands of Iranian, Afghan and Iraqi fighters have arrived in Syria to defend Damascus and its suburbs against Islamic State (IS), which has said it(...)

A billboard depicting Syria’s President Bashar al-Assad is seen in the old city of Homs. Steady advances by insurgents on key fronts in Syria mean president Bashar al-Assad is under more military pressure than at any point in the four-year-old war. The arabic on the billboard reads ‘Together, we will build it’. Photograph: Omar Sanadiki/Reuters

Syria’s defence minister has visited government army units to the east of Homs city, state television reported on Thursday, in what appeared to be the(...)

Children queue for water in the northwestern Syrian city of Ariha, in Idlib province, on Tuesday, after a coalition of insurgent groups seized the area. Syria has seen an increased flow of weapons and funds and an influx of fighters to insurgent and jihadi groups. Photogaph:  Khalil Ashawi/Reuters

In early March, the Syrian regime was on the offensive and had retaken territory lost to insurgents. Reasonable prospects existed for dialogue between(...)

An image made available by Jihadist media outlet Welayat Homs  shows the Palmyra prison being blown up by Islamic State group jihadists, 10 days after they seized the ancient city from pro-regime forces. The prison was the site of a massacre in 1980 in which hundreds of inmates were killed.  Photograph: AFP/Getty Images

Islamic State group jihadists demolished a notorious government prison in the historic Syrian city of Palmyra on Saturday, as barrel bombs dropped by (...)

Members of al-Qaeda’s Nusra Front fire their weapon during an offensive to take control of the northwestern city of Ariha in Idlib province. Photograph: Reuters/Ammar Abdullah

A coalition of rebel groups has said it seized the last city in Idlib province in northwest Syria near the Turkish border. The Syrian army pulled back(...)

This picture released today by a militant website which had been verified shows Syrian government soldiers captured by Islamic State militants in the Palmyra area  of Syria. Photograph: militant website via AP

Islamic State (IS) fighters have killed at least 400 people in Palmyra since capturing the ancient Syrian city last week, Syrian state media said t(...)