The British and French governments have asked the United Nation to investigate Syria's government for using small amounts of chemical weapons in recent months, officials told the Los Angeles Times Thursday.
The diplomats, who spoke to the New York Times on condition of anonymity, said there had been a n exchange of letters with Secretary General Ban Ki-moon of the United Nations starting on March 25.
The evidence included soil samples and witness testimony but is not definitive, the Los Angeles Times reported.
President Obama said any use of chemical weapons by the Syrian regime would be a "game changer," which could lead to American military response, the New York Times reported.
Syrian President Bashar al-Assad's government has insisted that any United Nations investigation focus only on one instance of chemical weapons use in the Aleppo area which it says killed at least 26 people on March 19, the New York Times reported.
Ban said Wednesday that an investigative team he had assembled was ready to deploy as soon as they have the Syrian government's consent, the New York Times reported.