Wave of IS-claimed bombings in Syria kill at least 48

Near-simultaneous bombings claimed by the Islamic State group struck in and around strongholds of the Syrian government and Kurdish troops today, killing at least 48 people in a wave of attacks that came a day after the militants lost a vital link to the outside world along the Syrian-Turkish border.

The IS-run Aamaq news agency said the attacks included six suicide bombings and one remotely detonated blast. Most targeted security forces.

The Britain-based Observatory, which maintains a network of contacts in Syria, put the overall death toll at 53, although Syrian state TV said 48 were killed. Conflicting casualty figures are common in the 5-year-old Syria civil war.

Jennifer Cafarella, a Syria expert with the Washington-based Institute for the Study of War, said it was too soon to say if the attacks by the IS group were a reaction to its recent defeats along the border.

But she cautioned that setbacks for IS can lead to "a dangerous new phase" by the group, which sometimes resorts to "infiltration and spectacular attacks that exploit and widen rifts" between populations, groups and security forces in both western and northern Syria.

Turkey's recent intervention in the north has exposed major rifts and encouraged anti-Kurdish activity, Cafarella said in emails to The Associated Press.

She said it was likely that as IS militants are pushed out of territory, they will increasingly target government and Kurdish areas.

"So it's a dangerous possibility that we're witnessing ISIS gear up for a campaign to expand westward into either or both regime and opposition territory as it loses to the anti-ISIS coalition," she said, using an acronym for the militant group.

The territorial losses at the border were the biggest blow to the militant group that also has suffered a series of recent battlefield setbacks in Syria and Iraq.

Syrian rebels, backed by Turkish warplanes and tanks, continued to push IS fighters out of the border strip today, securing their hold on an area seized a day earlier.

In Hangzhou, China, meanwhile, President Barack Obama said the US and Russia have not given up on negotiations to halt the bloodshed in Syria, but acknowledged that "gaps of trust" exist between the rival powers.

Significant sticking points remain in negotiations over creating a US-Russian military partnership focusing firepower on "common enemies" in Syria, Obama said.

He acknowledged that a meeting today with Russian President Vladimir Putin did not yield a breakthrough.