International inspectors said Syrian combatants appear to have employed agents like chlorine in “systematic” strikes, Agence France-Presse reports.

The Organization for the Prohibition of Chemical Weapons said its findings in Syria suggest that “toxic chemicals, most likely pulmonary irritating agents such as chlorine, have been used in a systematic manner in a number of attacks,” AFP said in a Wednesday article.

Syrian rebels have accused President Bashar Assad’s government of staging the reported strikes from its aircraft, but Damascus says opposition forces have been responsible for any use of chemical arms in the conflict. The government has given other nations custody of all but 8 percent of its reported chemical stockpile, under a disarmament plan it accepted after an August 2013 nerve-gas strike prompted discussion of international military action. […]