A planned hazard reduction burn in Sydney’s south-west became difficult to control on Saturday, with multiple Rural Fire Service (RFS) fire trucks damaged after the fire escaped its containment area.

The incident occurred at Wedderburn, an area south-west of Sydney, during a planned operation designed to reduce bushfire fuel and lower the risk of future uncontrolled fires. Hazard reduction burns are regularly carried out across New South Wales as part of preparations for the bushfire season.

The burn was intended to be controlled by firefighters within predetermined containment lines. However, conditions changed during the operation and the fire moved beyond the area that crews had planned to burn. The situation required firefighters to respond to the developing fire while protecting equipment and surrounding areas.

Reports published on Saturday said multiple RFS vehicles were damaged during the incident, with one fire truck reported to have been destroyed. Nineteen people were also reported to have been affected by the incident, although the available reports did not indicate that the event resulted in a major loss of life.

Hazard reduction burning is an important part of bushfire management in NSW. The RFS describes hazard reduction operations as planned burns intended to reduce bushfire hazards. Such operations can involve deliberately burning vegetation under selected weather and fuel conditions so that future bushfires have less combustible material available.

The incident highlights the operational risks that firefighters can face even during planned burns. Fire behaviour can change quickly depending on wind, temperature, humidity, vegetation and terrain. Once a burn moves outside its intended containment area, additional crews and equipment may be required to manage the situation.

The NSW Rural Fire Service continues to monitor fire incidents across the state and advises residents to remain aware of local fire conditions. Its incident system provides information about active bushfires, hazard-reduction operations and other emergency incidents.

The Wedderburn incident also comes as NSW authorities continue carrying out planned fuel-reduction work ahead of the warmer months. A separate NSW Government hazard-reduction operation at Werakata National Park was scheduled across September 25 and 26, involving an 85-hectare area and temporary road and track closures. Authorities warned that smoke from hazard-reduction burns can affect visibility and people with respiratory conditions.

The Wedderburn incident serves as a reminder that planned fire operations can still become challenging when conditions change. Fire crews are expected to continue monitoring the affected area and dealing with any remaining risks.