Children are amongst the some 50 wounded Syrians who are wheeled into a hospital in Turkey just over the border.

Turkish doctors are taking blood samples to determine if their injuries were caused by chemical weapons attacks.

Doctors say at least some of the symptoms they've seen do suggest chemical weapon poisoning.

"The wounded are suffering from suffocation, breathing difficulties, and vomiting," this doctor said. "These are symptoms of chemical gas."

The results of the blood tests have not yet been confirmed.

The civil war in Syria has now entered it's third year. United Nations estimates put the death toll at about 70,000.