Poisonous cloud hangs over Berlin after chemical factory blaze: Fears of deadly hydrogen cyanide prompts warning to close all windows and stay inside after fire hits firm that makes weapons supplied to Ukraine
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Firefighters said sulphuric acid and copper cyanide were stored at the plant and the chemicals ignited, which could create hydrogen cyanide.Poisonous cloud hangs over Berlin after chemical factory blaze: Fears of deadly hydrogen cyanide prompts warning to close all windows and stay inside after fire hits firm that makes weapons supplied to Ukraine
Firefighters said sulphuric acid and copper cyanide were stored at the plant and the chemicals ignited, which could create hydrogen cyanide. Read more