Chemical incident 'caused by a spillage'published at 18:29 Greenwich Mean Time 27 November 2018
The chemical incident at a Premier Foods site in Staffordshire this afternoon was caused by a "spillage which gave off a gas", the fire service said.
The site at Knighton was evacuated of about 100 people.
The ambulance service said eight people were treated for minor conditions at the scene and none needed hospital treatment.
Here's the latest from the fire service:
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Firefighters remain at the scene, saying they are working to ensure business can resume.
Quote MessageIt's contained, it's going nowhere, we're looking at the next stage of clear-up. Before we know that we've got to know exactly what the chemical is."
Brian Griffiths, Staffordshire Fire and Rescue Service