Billy Connolly is being treated for the initial stages of Parkinson's disease, but will continue to work.

The 70-year-old actor claims the degenerative nerve disorder - which can bring on symptoms including shaking, rigidity, slowness of movement and difficulty with walking - won't ''inhibit'' his ability to work and he will still move forward with future projects including a theatre tour in New Zealand and a new TV show.

Billy recently won his battle with prostate cancer after the disease was caught early, but doctors have now found he is showing symptoms of Parkinson's, with sufferers including legendary boxer Mohammed Ali and 'Back To The Future' actor, Michael J Fox.

His spokesperson said: ''Billy Connolly recently underwent minor surgery in America after being diagnosed with the very early stages of prostate cancer. The operation was a total success, and Billy is fully recovered.

''In addition, Billy has been assessed as having the initial symptoms of Parkinson's disease.''

'Brave' star Billy - who is married to psychologist Pamela Stephenson - is currently being treated for the illness, which is commonly tackled through the use of levodopa, a chemical that the body converts into dopamine, an organic chemical used by the brain as a neurotransmitter.

His spokeswoman added: ''He is receiving the appropriate treatment [for Parkinson's disease].''

Presently, the disease will not hinder the comic-and-actor's career and he will be able to continue to work.

''Billy has been assured by experts that the findings will in no way inhibit or affect his ability to work, and he will start filming a TV series in the near future, as well as undertaking an extensive theatrical tour of New Zealand in the new year.''