Moors murderer Myra Hindley is 'making progress' in hospital after treatment on a potentially fatal brain condition.

Hindley, 57, is said to be comfortable after being treated for four hours by three specialists at Addenbrooke's Hospital, Cambridge.

She is suffering from a cerebral aneurism, caused by an artery swelling up at the base of the brain. Sudden ruptures of the artery can lead to fatal blood loss or severe brain damage.

The child killer is expected to remain in hospital over the weekend.

Keith Day, Addenbrooke's administrative director, said: "The patient has now completed her treatment, which has been successful so far.

"The patient will remain in hospital under close observation and her condition can best be described as comfortable."

"She continues to be under observations following the treatment yesterday and is making satisfactory progress."

It is the third time in recent weeks that Hindley has been admitted to hospital from Highpoint Prison near Bury St Edmunds, Suffolk, where she is serving a life sentence.

She was twice taken to the West Suffolk Hospital in Bury St Edmunds after collapsing in her cell a few days after Christmas.

Hindley is being kept in a single room away from other patients and guarded by prison warders.

Mr Day said her condition would be monitored by doctors throughout the weekend.

He would give no details of her treatment - although it was not thought that she had undergone surgery.

Hindley's condition is known to be aggravated by stress and smoking. The former shorthand typist, who has spent 33 years in prison, smokes 40 cigarettes a day.

Hindley and her former lover, Ian Brady, were given life sentences in May 1966 for the murders of 10-year-old Lesley Ann Downey and 17-year-old Edward Evans after being arrested at their home on the outskirts of Manchester. In 1987 the pair confessed to the killings of Pauline Reade, 16, and Keith Bennett, 12.