Disgraced former celebrity publicist Max Clifford is being treated in a critical care unit after suffering a cardiac arrest, his daughter has said.
The 74-year-old is said to be "in a bad way" after collapsing twice at Littlehey Prison in Cambridgeshire, where he is serving an eight-year jail sentence for historic sex offences.
His daughter, Louise, 46, told the Mail on Sunday that Clifford first collapsed in his cell on Thursday when he was trying to clean it.
"It was just too much," she said.
"Next day he collapsed again and was unconscious for several minutes - though he doesn't know how long.
"He was seen by a nurse, who insisted he must be transferred to a local hospital.
"That's where he had his cardiac arrest, later on Friday. He is now in the critical care unit. He's in a bad way."
A Prison Service spokesperson said: "The safety and welfare of people in our custody is our top priority and we take our duty of care extremely seriously.
"All prisoners have access to a GP and the same level of NHS services as those in the community. A doctor's advice is always sought when deciding how best to meet individual healthcare needs, while ensuring the public is protected."