A massive explosion has been reported at a major Italian manufacturer of medium- and large-caliber ammunition, formerly known as Simmel Difesa. The plant operates in Colleferro and Anagni, near Rome.Local Italian outlet Sky TG24 reports: Fire and explosion at Colleferro, in the facility of the former Simmel Difesa, currently owned by KNDS Ammo Italy. The company, located in the Quarto Chilometro area, along via Latina, between Colleferro and Artena, produces medium- and large-caliber ammunition for land and naval defense, as well as solid fuels for aerospace launch vehicles. The incident is said to have occurred in the powder pressing department. A loud boom was distinctly heard by residents in the area, triggering the alarm.Incendio ed esplosione a Colleferro, nello stabilimento dell'ex Simmel Difesa, attualmente di proprietà della KNDS Ammo Italy. L'azienda, che si trova nell'area del Quarto Chilometro, lungo via Latina, tra Colleferro e Artena, produce munizioni di medio e grosso calibro per la… pic.twitter.com/fa7NaSFFtA
— Sky tg24 (@SkyTG24) August 13, 2026Separately, local media outlet Italia 24H Live posted footage on X that appears to capture the moment the explosion rocked KNDS Ammo Italy. Incendio ed esplosione a Colleferro, nello stabilimento dell'ex Simmel Difesa, attualmente di proprietà della KNDS Ammo Italy. L'azienda, che si trova nell'area del Quarto Chilometro, lungo via Latina, tra Colleferro e Artena, produce munizioni di medio e grosso calibro per la… pic.twitter.com/fa7NaSFFtA
