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(...)

Islamic State militants were reported to have gained ground against Syrian troops in fighting near the historic city of Palmyra, also known as Tadmur. This is a file potograph of the ancient city. Photograph: Joseph Eid/AFP/Getty Images

Islamic State militants were reported to have gained ground against Syrian troops in fighting near the historic city of Palmyra, also known as Tadmur(...)

A man holds an injured boy after what activists said was a barrel bomb dropped by forces loyal to Syrian president Bashar al-Assad hit a school and residential building in the Seif al-Dawla neighborhood of Aleppo. Photograph: Hosam Katan/Reuters

Children were killed and wounded in Aleppo on Sunday in a barrel-bomb attack that destroyed a building where students were sitting exams, residents a(...)

A rebel fighter rides a motorbike along a road in Qarmeed camp, as smoke rises in the background after Islamist rebel fighters took control of the area from forces of Syria’s president Bashar al-Assad . Photograph: Abdalghne Karoof/Reuters

Islamist rebels and the Syrian army fought fierce battles in Latakia province overnight close to president Bashar al-Assad’s ancestral home, the army (...)

A man raises his arms after  an alleged  airstrike by forces loyal to Syria’s president Bashar al-Assad in the village of Sarmin on Wednesday.Photograph: Reuters

Members of the United Nations Security Council cried when Syrian doctors showed a video of failed attempts to resuscitate three children after a chlo(...)

Rebel fighters from Suqour al-Sham Brigade fire their weapons towards forces loyal to Syria’s president Bashar al-Assad that are fleeing Idlib city. Photograph: Mohamad Bayoush/Reuters

Islamic fighters led by al-Qaeda’s branch in Syria have seized almost full control of the north-western city of Idlib, taking over major roundabouts a(...)

Crac des Chevaliers, an 11th century crusader castle in Syria which has been reclaimed by the country’s department of antiquities, having been seized by insurgents in 2012. Photograph: Getty Images/iStockphoto

Syria’s department of antiquities has reclaimed the vast 11th- century crusader castle Crac des Chevaliers from the army and taken charge of the si(...)

Children playing at a makeshift settlement for Syrian refugees in Bar Elias, in the Bekaa valley. The Britain-based Syrian Observatory for Human Rights said more than 215,000 people have been killed since the start of the crisis in 2011, about  half of them civilians. Photograph: Jamal Saidi/Reuters

The four-year-old Syrian conflict has precipitated the world’s largest humanitarian crisis since the second World War. An estimated 200,000-220,000 ha(...)

Members of al-Qaeda’s Nusra Front prepare to fire a mortar towards forces loyal to Syria’s president Bashar al-Assad in al-Mallah farms, north of Aleppo, last month. Photograph: Hosam Katan/Reuters

Al-Qaeda’s Syrian branch was left reeling on Friday after its military chief was killed in an apparent army air strike, adding to confusion over the f(...)