Police are pursuing 340 lines of inquiry and speaking with as many as 40 victims in the probe into sexual abuse allegations against Jimmy Savile.
"We have officially recorded 12 allegations of sexual offences but expect this number to grow," the Metropolitan police said on Friday.
"We continue to liaise with 14 forces."
The latest development came after disabled actress Julie Fernandez best known for her role in 'The Office' was the latest to claimed Jimmy Savile groped her.
Julie Fernandez told Radio 5 Live she remembered feeling the "huge rings on his fingers" and that his hands were "everywhere... lingering too long in places they shouldn't."
She claimed she was 14-years-old when the abuse happened, after appearing as a teenager on Jim'll Fix It.
Fernandez's claims come in the midst of a raft of sexual abuse allegations against the late TV personality. His tireless fundraising, spearheading a number of charity campaigns, was well documented.
A statement from the Metropolitan Police on Friday said:
"Officers from the Serious Case Team of the MPS Child Abuse Investigation Command will continue to contact those who have come forward, to ensure that they are given the advice and support they need.
"We would once again praise the courage of, and thank everyone who has come forward to provide us with information to assist in understanding the scale of abuse perpetrated by Savile.
"Any one with information or concerns should call NSPCC on 0808 800 5000.