DAMASCUS (Sputnik) — Syrian authorities have provided the Organization for the Prohibition of Chemical Weapons (OPCW) with evidence of mustard gas use by militants in Aleppo province near the village of Maarat Umm Hawsh, official representative of Syrian national authority for the implementation of Chemical Weapons Convention Samer Abbas said Sunday.
"We have presented the [OPCW] mission all the documents, they have been checked and accepted. Mission will come to Syria again to collect the samples which will be analyzed later," Abbas said.
