The Yorkshire Ripper has tested positive for coronavirus, it is being reported.
Serial killer Peter Sutcliffe, 74, is said to be in isolation at HMP Frankland in County Durham.
He is serving a whole life term in prison for the murders of 13 women, and attempting to murder seven others after being convicted in 1981.
A source told The Sun: "He started showing symptoms on Thursday.
"The results were turned around quickly because of the danger of him spreading it.
"The worry for him is that he ticks so many of the danger categories for coronavirus.
"He is already in ill health, he is overweight and he is old. If things go downhill for him, it could be very, very serious."
He was taken to hospital earlier this week and was said to have been convinced he had coronavirus.
In recent years he has suffered from health problems including diabetes and an angina attack and is almost completely blind.
In 1997, he was attacked by a fellow inmate, which damaged his eyesight.
A Ministry of Justice spokesperson said: “We do not comment on individuals.”
