The FBI is investigating Ghislaine Maxwell, Jeffrey Epstein's 'madam', and several others who 'facilitated' the late pedophile's reign of sexual abuse against young girls, it has been revealed.

According to two law enforcement sources cited by Reuters on Friday, Maxwell is the main focus of the investigation.

Other 'people who facilitated' his abuse are also being looked into, they said, adding that the probe is in early stages.

The sources said there is no immediate suggestion that agents want to speak to Prince Andrew, but they would not rule it out.

The FBI is investigating British socialite Ghislaine Maxwell over her links to US financier Jeffrey Epstein, who killed himself while awaiting trial on sex trafficking charges (pictured together)

A representative for the British royal family said that whether the agency interviewed Andrew was 'a matter for the FBI.'

The investigation brings Maxwell closer to facing charges over her alleged involvement in Epstein's web.

She has been in hiding since the financier was arrested in June and did not even break cover after his suicide in August.

Epstein's (pictured) suicide in August, at age 66, came a little over a month after he was arrested and charged with trafficking dozens of underage girls as young as 14 from at least 2002 to 2005

Maxwell, the daughter of late media tycoon Robert Maxwell who died in disgrace after plundering the pensions of thousands of British newspaper staff, has always denied wrongdoing.

She has issued statements through her attorneys to deny claims made by women who say Epstein abused them.

Her lawyer did not immediately respond when contacted by DailyMail.com on Friday.

Maxwell and Epstein met in the early 90s.

They dated for a few years then stayed close friends for years.

It was during their friendship that dozens of women, who have come forward in lawsuits and in interviews, say that Maxwell procured them for Epstein then showed them how to please him sexually.

Among them is Virginia Roberts Giuffre who says she slept with Prince Andrew in London in 2001 when she was 17, a claim both he and Maxwell deny.

The women say Maxwell manipulated them when they were under Epstein's thumb and threatened them if they tried to leave. She denies all their allegations.

Maxwell has been pictured just once in the last year, in this image taken at an L.A. In-N-Out burger

Maxwell was who allegedly introduced Prince Andrew to Epstein in the 1990s. She is pictured with him in 2000

Prince Andrew is shown with Virginia Roberts and Maxwell in Maxwell's London home in 2001, on the night he allegedly had sex with Roberts. She was 17 at the time

Epstein's suicide in August, at age 66, came a little over a month after he was arrested and charged with trafficking dozens of underage girls as young as 14 from at least 2002 to 2005.

Prosecutors said he recruited girls to give him massages, which became sexual in nature. He had pleaded not guilty.

Following Epstein's arrest, the FBI urged anyone who had been victimized by Epstein or had additional information to call the agency's hotline.

U.S. Attorney General William Barr vowed to carry on the case against anyone who was complicit with the financier.

'Any co-conspirators should not rest easy,' he said in August.

The sources said they had received numerous tips from the hotline, which they are looking into.

There are now 22 lawsuits pending against Epstein's estate.

When he died, he left a reported fortune of around $500million to his brother.

There are other women who worked for Epstein who his victims name in lawsuits as alleged co-conspirators.

The FBI has no current plans to interview Prince Andrew (pictured during BBC interview) who stepped down from his public duties in November because of what he called his 'ill-judged' association with the well-connected money manager

Some were protected by him from prosecution under his 2007 sweetheart deal with Florida prosecutors who let him off with just a one-year prison sentence for pleading guilty to soliciting underage girls.

Those women, including Sarah Kellen, Adriana Ross, Lesley Groff and Nadia Marcinkova, were all protected under the deal in Florida.

Groff has issued a statement through her attorneys to deny having anything to do with Epstein's relations with young girls.

She had been accused of booking travel for them to meet Epstein.

'Lesley Groff worked as an executive assistant in Jeffrey Epstein’s business office, along with attorneys and other executives.

Former model Adriana Ross who worked for Epstein in 2002 in Florida, allegedly arranging some of the 'massages' where the alleged abuse took place, refused to speak against him in 2010 civil proceedings and is now a ghost. They are shown together in 2005

Lesley Groff, Epstein's former assistant (left). He begged her not to go on maternity leave in 2004, giving her a Mercedes to make her commute better and offering to pay for her nanny. He called her an 'extension of his brain'. Nadia (right), the alleged former sex slave, is now a pilot. She operates under the name Fly Global Girl and has an impressive social media following

'Ms. Groff, however, never knowingly booked travel for anyone under the age of 18, and had no knowledge of the alleged illegal activity whatsoever.

Sarah Kellen, who was one of his alleged co-conspirators, said she too was a victim of Epstein

'Ms. Groff, a parent herself, is incredibly shocked and deeply upset about the alleged wrongdoings of Mr. Epstein,' her attorney said in a statement earlier this year.

Kellen was alleged to have made appointments for the girls to see Epstein. In some court documents, women claim she also took part in the sexual acts.

A spokesman for Kellen issued the following statement to DailyMail.com earlier this month: 'Sarah had just turned 22 when she was recruited by Jeffrey Epstein and Ghislaine Maxwell to work as an assistant for Maxwell. Sarah was targeted by Epstein and Maxwell when she, like many of their victims, was extremely vulnerable - struggling financially and emotionally.

'Sarah had no support system in her life at the time, having recently been divorced by the man she married when she was 17-years-old, and then cast out of the Jehovah’s Witness community in which she had been born and raised.

'Very soon after Sarah was brought into Epstein’s world, he began to sexually abuse her, and this abuse went on for years.

'While working for Maxwell and Epstein, Sarah’s job responsibilities included scheduling appointments for them at their direction. At no time did Sarah recruit anyone on Epstein’s or Maxwell’s behalf.

'Sarah continues to struggle with the trauma of her experiences and has chosen not to speak publicly at this time.'

Ross has not spoken out.