City region plan for Cardiff, Newport and Bristol unveiled
Details on how Cardiff, Newport and Bristol plan to work together as a city region under the title of Great Western Cities have been unveiled.
It is hoped the move will boost the economy in the region and help to develop renewable energy.
The announcement is the latest step for councils either side of the Severn Estuary to work together to rival England's "northern powerhouse" of cities.
BBC Wales economics correspondent Sarah Dickins reports.