Around 20 people have been evacuated from their homes as firefighters work to tackle a large blaze at a farm.
Avon Fire & Rescue Service first responded to reports of a fire at Chestnut Farm in Streamcross on the outskirts of Claverham, Somerset, just before 21:20 BST on Saturday.
Fire crews remain at the scene while Avon and Somerset Police officers are manning road closures in the area.
Residents living nearby are being urged to stay inside and keep doors and windows closed as the fire service has warned the smoke “may contain hazardous chemicals”.
The incident is ongoing but no injuries have been reported, police added.
North Somerset Council has set up an emergency rest centre in Yatton for the people who have had to leave their homes.
Avon and Somerset Police has told anyone living with the evacuation cordon who experiences health issues to call 999.
Staff from South Western Ambulance Service are at the scene as part of “well rehearsed multi-agency plans”, the force added.