More than 300 workers have been evacuated from a factory in Beresfield following a workplace accident overnight.
Emergency services were called to the scene around 7:30pm after a chemical spill.
11 employees were treated at the scene with nine being taken to various hospitals across the region.
Fire and Hazmat crews have since secured the scene.
Investigations are now being undertaken by Safe Work NSW.
Image: By Highway Patrol Images (NSW Fire Rescue Scania pumper Arncliffe 029) [CC BY 2.0 (https://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons