Max Clifford, disgraced celebrity publicist, has died aged 74.
The former PR agent was taken to hospital after he collapsed in his cell in Littlehey Prison in Cambridgeshire, reports The Sun.
His family confirmed the 74-year-old suffered a cardiac arrest while cleaning his cell.
The disgraced publicist was serving an eight-year sentence for sex attacks towards teenage girls carried out between 1977 and 1985.
According to repots, Clifford abused four girls between 15 and 19 and had plans to appeal his conviction.
A Prison Service spokeswoman said, 'As with all deaths in custody, there will be an investigation by the independent prisons and probation ombudsman. Our condolences are with Mr Clifford’s family at this difficult time.'