Member of Parliament Filip Turek initially reported a leak of yperit (sulfur mustard gas) into the soil within the Šumava National Park on Monday, prior to a coalition council meeting. He later corrected the statement to Český rozhlas, clarifying that the substance leaking into the ground was actually fosgen (chlorine gas). The initial claim regarding yperit was made public following a government meeting on Monday, where Minister of the Environment Igor Červený also discussed substances leaking into the soil. The reason for the initial misidentification remains unclear. This incident has raised concerns about potential environmental contamination within the Šumava National Park. Further investigation is likely to determine the source and extent of the fosgen leak. Authorities have not yet released details regarding potential hazards to the public.