Britain's National Health System (NHS) has long been haunted by the specter of waiting-lists and tight funding, but is now facing omens of a rather more unsettling kind.

An exorcist has reportedly been summoned to a hospital in Derby after staff saw a ghost prowling the corridors near the morgue.

Managers at the Derby Royal Hospital have received numerous complaints from spooked workers that a figure cloaked in black has been stalking the wards and walking through walls at the site run by the NHS — perhaps to be renamed the National Haunted Service.

In an e-mail to staff, senior manager Debbie Butler reportedly wrote: “I’m not sure how many of you are aware that some members of staff have reported seeing a ghost. I’m taking it seriously as the last thing I want is staff feeling uneasy at work.”

The hospital denied that an official exorcism would be taking place, but a spokeswoman for the Bishop of Derby confirmed that the hospital’s on-site chaplain had contacted the diocese Paranormal Advisor — essentially an exorcist — to assess the situation and reassure spooked staff.

She said: “The sightings will be investigated and appropriate action taken.”

One member of staff said: “Several have seen a male figure cloaked from head to toe in black darting between rooms and through walls — especially in departments near the morgue.”

Click here to read more on this story from the Times of London.