A part of the River Wye is failing to meet environmental standards due to the level of phosphates in the water, according to a Welsh Government body.

Natural Resources Wales research shows the section from Walford Brook to Bigsweir Bridge is failing.

That part of the river straddles the border between England and Wales but is not seen as failing by Natural England and the Environment Agency.

The guidance for setting water quality targets in rivers that are designated for nature conservation is the same in England and Wales.