An army of brown-tailed moth caterpillars was seen at the foot of Beeston Bump in Sheringham on Monday.

People and animals should avoid coming into contact with them because they have spiked and barbed hairs that contain a toxin.

Beeston Bump, Sheringham (Image: Antony Kelly)

If the hairs break off, they can cause symptoms such as skin rashes, headaches and breathing difficulties. 

The caterpillars are brown and have red and white markings, and they are known for living in "tents" which they build from silk in trees and shrubs.

They usually grow into adults by mid-June and go into their chrysalis by late June.

A spokeswoman for North Norfolk District Council said: "If direct contact is made, the public are advised to wash their hands in soapy water and clean their eyes with eyewash, and to seek medical advice if the symptoms are severe or persistent."

© Eastern Daily Press