The US State Department has reported indications that a toxic industrial chemical, probably chlorine, was used in the Syrian town of Kfar Zeita this month.
"We have indications of the use of a toxic industrial chemical" US spokeswoman Jen Psaki said, referring to the rebel-held area in the central province of Hama.
Psaki said the United States was still trying to determine the facts and that "there needs to be an investigation of what's happened here."
More top news
The five-piece dance group do not sing but their choreographed back-flips had the crowd cheering at their audition in tonight's episode.
Business Secretary Vince Cable says the party plans to double the number of employers offering apprenticeships to young people.
A study suggests people who are obese fall into six types including heavy drinking males, young healthy females and those in poorest health.