Moors Murderer Ian Brady has spent a second night in a general hospital, officials confirmed today.
The serial killer was admitted to Fazakerley Hospital in Aintree, Liverpool, for tests on Monday after becoming "acutely physically unwell".
Brady, 74, who was jailed in 1966 for murdering three children, has been detained at Ashworth high security psychiatric hospital in Maghull, Merseyside, since 1985.
A spokeswoman for Ashworth said today: "Ian Brady, a patient at Ashworth Hospital, is still in a general hospital this morning where he spent the night after becoming acutely physically unwell.
"He has undergone a series of tests and was kept in.
"Ian Brady is in a single room and will continue to be accompanied in that room at all times by two nurses from Ashworth Hospital.
"Two other members of Ashworth Hospital staff will also be on duty outside his room throughout his stay in the general hospital."
Brady is due to attend a mental health tribunal on Monday regarding his application to be transferred to a Scottish prison and be allowed to die, but his appearance at that hearing is now in doubt.
Brady and his partner, Myra Hindley, were responsible for the murders of five youngsters in the 1960s.
They lured children and teenagers to their deaths, with the victims sexually tortured before being buried on Saddleworth Moor above Manchester.
Pauline Reade, 16, disappeared on her way to a disco on July 12 1963 and John Kilbride, 12, was snatched in November the same year.
Keith Bennett was abducted on June 16 1964 after he left home to visit his grandmother; Lesley Ann Downey, 10, was lured away from a funfair on Boxing Day 1964; and Edward Evans, 17, was killed in October 1965.
Brady was given life at Chester Assizes in 1966 for the murders of John, Lesley Ann and Edward.
Hindley was convicted of killing Lesley Ann and Edward and shielding Brady after John's murder, and also jailed for life.
In 1987 the pair finally admitted killing Keith and Pauline.
Both were taken back to Saddleworth Moor in 1987 to help police find the remains of the missing victims but only Pauline's body was found.
Hindley died in jail in November 2002, aged 60.
Brady, who was born in Glasgow, wants to be transferred to a Scottish prison and be allowed to die.
He has been tube-fed since refusing food 12 years ago.
The mental health hearing on Monday could be a rare chance to see the Moors Murderer in public.
It is only the second time such a hearing has been held in public.
The tribunal is due to take place at Ashworth and be relayed to the Civil Justice Centre in Manchester, where the public will be able to observe the proceedings, Judge Robert Atherton ruled.
Brady's solicitor, Richard Nicholas, said today he had not spoken to his client since his admission to Fazakerley Hospital.
He added: "He is still being assessed in relation to his condition but we remain hopeful that the tribunal will go ahead as planned."