Overview

• Emergency crews cleared the Obra Social de Viajantes Vendedores building on Moreno al 2000 after a 911 alert early in the afternoon.
• The substance was detected in the basement area, prompting street closures and a controlled perimeter.
• Firefighters, Policía de la Ciudad, Defensa Civil and Guardia de Auxilio coordinated detection and containment tasks on site.
• The gas was reported as possibly hydrogen cyanide, pending confirmation through further measurements.
• Edesur was expected to evaluate power isolation and take new readings, while one outlet identified an on-site laboratory as ANDAR.