Three women have alleged that one of the brothers of late billionaire Mohamed Al Fayed sexually assaulted them during their time working for Harrods, the store the Egyptian businessman ran with his two brothers.
Harrods management said the BBC reports "raise serious allegations" against Salah Fayed, and pointed to the "breadth of abuse" by the former store owner.
Hundreds of people, including six Australians, have come forward accusing Mohamed Al Fayed of sexual assault, following a BBC documentary that aired allegations that he had assaulted 20 ex-Harrods staff members.
Now three women have alleged they were trafficked and sexually assaulted by his brother Salah Fayed, who died of pancreatic cancer in 2010.
Each woman worked at Harrods and alleged that they were also sexually assaulted or raped by Mohamed Al Fayed.
One woman said she was raped by Salah Fayed after being drugged.
Metropolitan Police Commander Stephen Clayman said police continued to investigate allegations, even though they could not pursue criminal proceedings against the dead brothers.
"We remain dedicated to explore all reasonable lines of enquiry, carefully reviewing new information, and identifying any allegations that could lead to criminal action," he said.
"Our commitment to those affected is unwavering. We will do everything possible to update on our progress when we can, but it is crucial we do this thoroughly and we do it right."
The alleged abuses by Salah Fayed took place in London, the south of France and Monaco between 1989 and 1997.
Two of the women who claimed they were abused outside of the UK said they believed it would constitute trafficking today.
They said they were encouraged to go overseas on false pretences of work and exploited.
Mohamed Al Fayed, who died last year aged 94, owned Harrods between 1985 and 2010.
Mohamed Al Fayed's wealth, eccentricity and celebrity connections made him a household name in the UK, as did his links to Princess Diana.
His son Dodi was romantically involved with the royal, but both were killed in a 1997 Paris car crash.
Allegations of sexual assault were levelled against Mohamed Al Fayed before his death.
He always denied the claims.
In a statement, Harrods management applauded the accusers for coming forward.
"Harrods supports the bravery of these women in coming forward. These new claims point to the breadth of abuse by Mohamed Fayed and also raise serious allegations against his brother, Salah Fayed," the statement said.
"We also hope that they are looking at every appropriate avenue to them in their pursuit of justice, whether that be Harrods, the police or the Fayed family and estate," the statement said.
Lawyers Dean Armstrong KC, Bruce Drummond and Maria Muller are representing hundreds of accusers of Mohamed Al Fayed as part of the Justice for Harrods Survivors group.
Following the BBC's report on Thursday, local time, the group released a statement which said it had expected more abusers to be named.
"We are grateful that another abuser has now been unmasked and look forward to the others on whom we have credible evidence — whether abusers themselves or enablers facilitating that abuse — being exposed in due course," the group said.
"Make no mistake, the abuse experienced by our survivors was facilitated and enabled by a vast infrastructure — an infrastructure that must be exposed and torn down.
"We are proud to support the survivors of Salah Fayed's abuse and are committed to achieving justice for them, no matter what it takes."
The Metropolitan Police said last week that it had referred itself to the police watchdog, after two women complained about the investigations made into their reports that they were assaulted by Mohamed Al Fayed.
The force said it was "actively reviewing 21 allegations reported to the Metropolitan Police prior to Mohamed Al-Fayed's passing … to determine if any additional investigative steps are available or there are things we could have done better."
