The National Trust is to step up security after an investigation by the Telegraph has revealed that neo-Nazis are conducting rituals at their historic sites.

It can be revealed that a far-right group which promises its followers reward in the afterlife if they die in the “struggle for the freedom” has vowed to “take back” ancient locations across England.

The National Trust admitted that they were aware that far-right groups had been using Avebury, a World Heritage Site, to carry out rituals and said that they had reported all concerns to the authorities.

They vowed to step up security at Wayland Smithy, a Neolithic burial chamber which they manage on behalf of English Heritage, where fanatics have carved swastikas into trees.

The Telegraph has identified that a group calling themselves Woden’s Folk who have carried out masked torchlight rituals and boasted about launching a “English resistance” at the two sites.