A man has been arrested on suspicion of fraudulently claiming to have lost family members in the Grenfell Tower disaster.
The 52-year-old man is thought to have attempted to gain money and housing by pretending loved ones had died in the blaze.
He allegedly came forward in the immediate aftermath of the fire and was assigned family liaison officers, claiming to have lost his wife and son in the fire.
He attempted to claim financial support stating he had lost all his property, Scotland Yard said.
Police started to investigate the man after inconsistencies in his story became apparent, and found he was living around 20 miles away in Bromley, southeast London.
They also found that he does not have a wife or child.
Officers spoke to neighbours of the flat the man claimed to live in who said he did not live at the address.
Metropolitan Police Detective Superintendent Fiona McCormack, said: "The distress and suffering caused to so many families and loved ones that night is harrowing.
"I have made it clear that we are not interested in investigating things such as sub-letting or immigration matters as I want their help and do not want there to be any hidden victims of this tragedy.
"However, we will robustly investigate any information about anyone who seeks to capitalise on the suffering of so many."
The man was arrested on Wednesday on suspicion of fraud and is in custody at a west London police station.
Relatives of the person who did live in the property have been told about the investigation.
Meanwhile it has been announced that the public inquiry into the fire will be led by retired judge Sir Martin Moore-Bick.
The 70-year-old, who specialised in commercial law before spending more than 20 years as a judge, has been confirmed in the role by British Prime Minister Theresa May.
Announcing the appointment Mrs May added: "We must get to the truth about what happened. No stone will be left unturned by this inquiry."
She told MPs she expects Mr Moore-Bick will "want to produce an interim report as early as possible" to address the immediate lessons that need to be learned from the disaster.
Mrs May said: "I am determined that there will be justice for all the victims of this terrible tragedy and for their families who have suffered so terribly."
Residents are to be given a say over the direction of the investigation.
Eighty people are now presumed dead but the final death toll will not be known until at least the end of the year.
Most of those who died in the fire on 14 June were said to be in 23 of the tower block's 129 flats.