The Russian army has discovered an underground chemical laboratory set up in Douma in the area that the jihadists who had occupied the city, have now abandoned.

17 April 2018: Alexander Rodionov, an expert on chemical weapons, declared on Rossiya TV, that basic ingredients for chemical weapons such as thiodiglycol and diethanolamine, had been discovered in the lab. Importantly, such chemicals are used to manufacture mustard gas.