Iran's permanent representative to the United Nations Amir Saeid Iravani has expressed "deep concern" over the threat of terrorist groups acquiring chemical weapons.

The Hague-based chemical weapons watchdog OPCW has concluded that Daesh was behind the 2015 chemical weapons attack in Syria, debunking another Western lie that it was done by the Assad government.

Iran backs dialog between Syria and the world's chemical watchdog as well as impartial probe into alleged chemical incidents in the Arab country.

Damascus says US forces have supplied terrorists in the strategic al-Tanf area with chemical weapons and trained them how to use them to incriminate Damascus.

The US has decided, in contravention of the Convention on Cluster Munitions, to provide Ukraine with cluster munitions as part of the latest military aid package.

Iran questions credibility of world chemical watchdog's report on Syria.

Syria’s foreign minister says Washington and its European allies are reusing the same flimsy pretexts they used for the 2003 invasion of Iraq against his country.