A team of UN human rights investigators said they had "reasonable grounds" to believe that 'limited amounts' of chemical weapons had been used in Syria, reports Reuters.
Speaking at a news conference in Geneva, the chair of the UN commission of inquiry, Paulo Pinheiro said:
"There are reasonable grounds to believe that limited quantities of toxic chemicals were used. It has not been possible, on the evidence available, to determine the precise chemical agents used, their delivery systems or the perpetrator."
"The witnesses that we have interviewed include victims, refugees who fled some areas, and medical staff."
In a report published Tuesday, the team said that they had received allegations of use from both government and opposition forces, however, most of the testimony was regarding use by government forces.
Calling on the UN Security Council to ensure accountability, the commission's report said:
"The conflict in Syria has reached new levels of brutality."
"War crimes, crimes against humanity and gross human rights violations continue apace."
"The documented violations are consistent and widespread, evidence of a concerted policy implemented by the leaders of Syria's military and government."