Sixteen people, among them 10 children, were killed in a government air raid in eastern Syria on Wednesday, a monitor said, but state media blamed the deaths on jihadist militants.
ISIS issues another video, this time of the Syrian soldiers who were made to parade in there undergarments before executing them mercilessly.
Syrian troops killed 32 rebels in an ambush in the southern province of Daraa early on Sunday, a monitoring group said.
At least 31 Islamic State militants and eight civilians died in Syrian air force raids on Sunday in the northern province of Raqa, a stronghold of the jihadist fighters, a monitoring group said.
Syria`s oil and gas industries have suffered total losses of USD 21.4 billion since the outbreak of the country`s war three years ago, Oil Minister Suleiman Abbas said Tuesday.
New extremist networks in Europe and the Middle East may emerge from the war in Syria as thousands of foreigners fight alongside local militants, the UN Security Council heard Wednesday.
The European Union`s police organisation says the threat of terrorism across the 28-nation bloc is "acute and diverse," despite a fall in the number of attacks last year.
The war in Syria is driving one family from their home every minute, pushing the number of people internally displaced by conflict to record highs globally, a report said Wednesday.
More than 150,000 people have been killed in Syria since the conflict began in March 2011, a monitoring group said in a new toll released on Tuesday.
The Syrian government says it freed only 25 prisoners in exchange for 13 Greek Orthodox nuns who had been held by al Qaida-linked rebels and not 150 as was reported earlier.
A spokesman for a rebel coalition says a suicide bombing has killed a senior al Qaeda operative in the northern Syrian city of Aleppo.
Syria said on Sunday it is ready to cooperate with a rare UN Security Council resolution to allow humanitarian access, so long as it respects "state sovereignty."
The UN refugee agency said Thursday it has set up an air bridge to deliver 800 tonnes of aid to the city of Qamishli in northeastern Syria.
UN`s mediator on the Syria conflict was to meet high-level Russian and US diplomats in Geneva in hope of breathing new life into the flagging peace talks.
Aid teams evacuated hundreds of exhausted civilians from besieged districts of the city of Homs on Sunday, as Syria`s regime and rebels again accused each other of violating a truce.
Syria must move faster to remove its deadly chemical weapons stockpile and meet the June 30 deadline set for destroying its arsenal, the UN Security Council demanded.
The head of an international chemical weapons mission in Syria said on Thursday she did not believe the Syrian government was intentionally delaying the removal of its arsenal.
A suicide bomber blew himself up at the gates of a Syrian prison on Thursday and rebels stormed in behind him, freeing hundreds of inmates.
United Nations confirmed on Thursday that there would be a "humanitarian pause" in the besieged Syrian city of Homs, allowing civilians to leave.
US Secretary of State John Kerry admitted that Syrian President Bashar al-Assad was making gains on the ground, but denied US policy in Syria was failing.
Day in Pics: 20th September
Showbiz World - September 20, 2014
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