A UK-based human rights report suggests Iranian security forces may have used chemical agents during recent protests. The findings have raised serious international concern.
According to researchers, some substances may cause delayed health effects, potentially leading to fatalities days after exposure.
UK officials have called for an independent international investigation and raised the issue at diplomatic forums.
Iran has denied the allegations, calling them politically motivated.
Human rights groups say the report underscores the need for stronger global accountability mechanisms.
