Scotland Yard is now pursuing 340 lines of inquiry in the Jimmy Savile abuse case involving 40 potential victims, the force has said.
So far 12 allegations of sexual offences have been officially recorded but this number is increasing, the force said.
Metropolitan Police detectives are in contact with 14 other forces as the number of allegations against the late television presenter continues to rise.
Since ITV screened a documentary in which five women alleged they had been abused, new claims about Savile's predatory behaviour have emerged on a daily basis.
They include allegations that he targeted young hospital patients at Stoke Mandeville in Buckinghamshire, and Leeds General Infirmary.
A man has also claimed that he was abused by Savile as a 10-year-old boy in notorious Jersey care home Haut de La Garenne.
The developing scandal has seen the BBC come under fire with allegations that the corporation was aware of the Jim'll Fix It presenter's behaviour and failed to take action.
It was also claimed today that Savile was banned from visiting a council-run children's home after he molested a 12-year-old girl.
A woman, who did not want to be identified, said he was told to leave the care home in his home city of Leeds after staff found him in a bedroom with the girl in the 1970s.
Leeds Safeguarding Children Board said it had not received any complaints about Savile but encouraged anyone with concerns to report them.