SERIAL killer Peter Tobin's health is 'getting worse' as he remains in hospital.

The 76-year-old, who is serving life for the murders of Angelika Kluk, Vicky Hamilton and Dinah McNicol, now faces his fifth week in hospital after receiving emergency treatment for a broken hip. 

Tobin, who also has cancer, had a fall while in prison last month and has remained in a Scottish NHS facility since.

The Sunday Mail has now revealed that Tobin’s condition has deteriorated. 

A source said: “He’s not getting any better, in fact, his condition is getting worse.”

READ MORE: Serial killer Peter Tobin 'at death's door' in hospital

It comes after reports that Tobin was said to be "at death's door" in hospital as families of young women who have been murdered have begged him to reveal information.

Nicola Stork's sister Louise Kay disappeared from Eastbourne in 1988 and is strongly believed to be another of Tobin's victims.

Nicola said: "I don't want Tobin to die because it means we might never know but I've got no sympathy if he's in pain.

"If he dies without giving us information about Louise, then it probably means we'll never know what happened to her or where she is.

"I hope he will confess something or the police can go and speak to him to get it out of him."