Conservationists say the discovery of the heath fritillary is "exciting" and "positive" .

One of the rarest species of butterfly in the UK has been spotted at a new location in Exmoor National Park.

A couple on holiday in the area discovered two heath fritillaries at Ashton Cleave.

Ashton Cleave is close to Hawkcombe Woods where the Exmoor National Park Authority (ENPA) has been carrying out a long-term project to help the species.

The rare butterfly, also traditionally known as the “woodman’s follower”, has been breeding successfully in Hawkcombe for a few years.