The world's chemical watchdog expresses serious concern over large gaps in Syria's declaration about its chemical weapons stockpile, suggesting the involvement of potentially banned warfare agents. Syria agreed to join the Organization for the Prohibition of Chemical Weapons in 2013, but the chemical weapons dossier remains unresolved. The watchdog accuses President Bashar Assad's regime of continued attacks on civilians with chemical weapons during the country's civil war. Syria's OPCW voting rights were suspended in 2021 following poison gas attacks on civilians in 2017.