Growing anger over new development on top of prehistoric monument

The circular earthworks were first seen as cropmarks on photos in the 1970s

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Anger is mounting over a new warehousing development in Northamptonshire - being built on top of a 4,000 year old prehistoric monument.

A dig by archaeologists for the developers revealed the mysterious circular earthworks - known as Cotton Henge- first seen on aerial photography in the 1970s.

Locals say they didn't know about the historic site when plans for the extension to the Warth Park warehousing complex at Raunds were approved.

The henge - which would have been formed by two circular ditches and banks- doesn't have the protection of being a scheduled monument.

In a statement East Northamptonshire District Council which gave planning approval said: