Overview
- Four people were seen entering the mine off Frome Road in Bradford on Avon at about 5:30pm Wednesday, and smoke was reported around 7pm.
- A multi‑agency response deployed six fire crews along with police, ambulance teams and a Hazardous Area Response Team, with searches lasting until shortly after 4am Thursday.
- A national specialist mines rescue team searched smoke‑filled tunnels and concluded the underground area was empty.
- Firefighters extinguished the blaze with one hose reel jet and used gas monitors and thermal imaging during operations, and no injuries were reported.
- Police say enquiries continue to identify and trace the four individuals and they have issued renewed warnings about trespassing in hazardous underground sites.