An air strike near Syria's battleground second city Aleppo has killed the commander of the largest rebel alliance in the biggest blow since its formation early last year, a monitor said on Friday.
Al-Qaeda prepared the ground Thursday for a break with its Syrian affiliate, Al-Nusra Front, following several days of online chatter over a split between the jihadist groups.
Saudi Arabia warned Thursday that any military cooperation between the United States and Russia in Syria must help advance a political transition to end the war without Bashar al-Assad in power.
Fierce government bombardment of an opposition-controlled Syrian town has killed 43 people, among them children and medical staff, a monitoring group said Sunday in a new toll.
Two medics were among at least 20 people killed on Saturday in Syrian government shelling of a rebel-held town northeast of the capital, the Syrian Observatory for Human Rights said.
At least five people were killed in multiple suicide bombings early Monday in eastern Lebanon near the border with Syria, officials said.
Three Spanish journalists who had been held hostage in Syria by an Al Qaeda-linked group returned on Sunday to Madrid where they were welcomed by overjoyed family members after nearly a year in captivity.
Suspected government air strikes on Tuesday killed at least 44 civilians at two markets in a part of northwestern Syria controlled by the war-torn country's Al-Qaeda affiliate, a monitor said.
Al-Qaeda's Syrian affiliate confirmed on Wednesday the death of its spokesman Abu Firas al-Suri in a US air strike earlier this week.
Air strikes have killed several Al-Qaeda-linked Al-Nusra Front members including its spokesman and regime forces have retaken a strategic town from the Islamic State group in the latest setbacks for jihadists in Syria.
The head of Syria's powerful Al-Qaeda branch on Friday urged opponents of President Bashar al-Assad to reject a ceasefire due to begin at midnight and instead intensify attacks on the regime.
Syrian regime forces on Sunday overran the last major rebel-held town in the coastal Latakia province, a stronghold of President Bashar al-Assad, state television reported.