UK rivers near livestock farms are awash with superbugs and antibiotic residues, including in the idyllic River Wye, research by the Bureau of Investigative Journalism has found.

Unpublished data has revealed shocking new evidence about a secretive global trade in livestock, raising concerns about animal welfare and disease spread.

We were in a strip of forest, along a single-track road, making our way towards a huge industrial farm. A vast lake - actually a waste lagoon - stretched out in front of us. The bodies of dead pigs and the detritus of industrial farming were everywhere.