Walkers in the Peak District are advised to keep a look out after a mammoth moggy was reportedly spotted in Bradwell.
The sighting was made by a dog walker at Grey Ditch Field on Thursday at about 8pm.
The person called the police and reported coming within about 15 feet of a black cat, up to three feet long, which they believed to be a panther.
The creature was then said to slink into the distance.
Police are advising anyone who has seen a big cat to contact the British Big Cat Society on 01752 251153.