"The White Helmets are a humanitarian organization that has saved thousands of lives and continues to respond to bombardments by Russian and [Syrian] regime military forces," the official said on Wednesday.
The United States and the international community continue to support their work, the US defense official added.
Terrorists from a group calling itself Tanzim Ḥurras ad-Din (The Guardians of Religion Organization) are engaged in the direct preparation of sites for the detonation of containers loaded with poisonous substances during the shooting of a video about 'chemical attacks', the Russian Center for Syrian Reconciliation explained.
READ MORE: Russian MoD: White Helmets Preparing to Stage Chemical Attack in Idlib
The White Helmets and Nusra Front terrorists have approved videos of two scenes, which will be transferred to the United Nations and the Organization for the Prohibition of Chemical Weapons; the rest will be distributed in the social networks, the Russian Center for Syrian Reconciliation also said.