The clean-up of a Devon brook hit by pollution has finally been completed after tonnes of contaminated water and sludge were removed, but the investigation into what caused the incident is continuing.

Pollution was spilled into local rivers and protected sites, documents shared with the BBC suggest.

After months of relentlessly miserable weather for most of the UK, spring brings renewed enthusiasm for spending time outdoors hiking, wild swimming, paddling, or on walks. Millions of people visit ...