Doctors Without Borders' statement follows claims that 1,300 people were killed in a "chemical massacre" in Damascus.
6:56pm UK, Saturday 24 August 2013
Around 3,600 Syrians have been treated for "neurotoxic symptoms", and 355 of them have died, says the humanitarian group Doctors Without Borders (MSF).
The victims flooded into three Syrian hospitals on the day that hundreds of people were allegedly killed in a "chemical massacre" outside the capital Damascus.
They all arrived within less than three hours of each other, said MSF director of operations Bart Janssens.
He said the pattern of events and reported symptoms "strongly indicate mass exposure to neurotoxic agent".
"Medical staff working in these facilities provided detailed information to MSF doctors regarding large numbers of patients arriving with symptoms including convulsions, excess saliva, pinpoint pupils, blurred vision and respiratory distress," he said.
The Syrian Observatory for Human Rights said 54 children were among the dead.
Western leaders have accused President Bashar al Assad's forces of carrying out the alleged chemical attack.
The Syrian government has strongly denied the claims, and says it has evidence the attack was carried out by rebel forces.
continued at link