Two construction workers were seriously injured after part of a building collapsed at a worksite in Ultimo, near Sydney's CBD, prompting a large-scale emergency response on 4 August 2026. Rescue crews, firefighters, NSW Ambulance paramedics and police attended the scene after receiving reports that workers had become trapped beneath fallen concrete and structural debris.

Emergency responders worked to stabilise the damaged structure before safely reaching the injured workers. Both men were rescued and transported to hospital for specialist treatment. Authorities said the injuries were serious, but the rescue operation was completed without further casualties.

The collapse occurred in the busy inner-city suburb of Ultimo, an area undergoing significant redevelopment with residential, commercial and education-related construction projects. Police established exclusion zones around the site while engineers assessed the structural stability of the remaining building. Traffic diversions and pedestrian restrictions were put in place to allow emergency crews to work safely.

Safe Work NSW has commenced an investigation into the incident to determine what caused the collapse. Inspectors will examine construction methods, workplace safety procedures, structural conditions and compliance with occupational health and safety regulations. Investigators will also interview witnesses and review site documentation as part of the inquiry.

Construction site incidents are treated seriously across New South Wales, with authorities regularly reminding contractors and employers of their obligations to maintain safe workplaces. Structural failures can present significant risks to workers and the public, making thorough investigations essential to prevent similar incidents.

Emergency services praised the coordinated response of firefighters, ambulance crews and police officers who worked together to rescue the trapped workers and secure the area. Specialist rescue equipment was used to safely remove debris before the injured men could be reached.

The incident temporarily affected nearby businesses and transport, with members of the public advised to avoid the area while emergency operations continued.

Safe Work NSW is expected to continue its investigation, and further information may be released once inspections and technical assessments are completed.