Phosgene Detected at Swedish Security Service HQ

Traces of the toxic gas phosgene, used in WWI, were found at Sweden's security service headquarters, leading to an evacuation and hospitalizations.

Around 500 people were evacuated from Sweden's security service headquarters and eight were hospitalized following the detection of phosgene.
Official documents contradict earlier statements from the security service, which claimed no gas was detected.
Phosgene, a toxic gas used in World War I, was recorded by sensors on the building's roof.
Emergency services reported that phosgene levels decreased until they reached zero, eliminating the danger.
The incident occurred as Sweden was about to complete its NATO membership process, prompting Russia to monitor Sweden's next steps.