Detectives investigating the death of a woman following a fire in Greenwich have made a further arrest.
A 21-year-old man, [J] was arrested on Thursday, 21 March on suspicion of conspiracy to commit murder and later bailed to return pending further enquiries to a date in late April.
Nine other people have been arrested as part of this investigation.
A 22-year-old man and a 26-year-old woman have been bailed pending further enquiries.
A 45-year-old woman was arrested on Monday, 26 November on suspicion of conspiracy to murder and later released under investigation.
The investigation was launched after police were called to reports of a fire at a residential address in Centurion Square, Greenwich in the early hours of Thursday, 6 September.
A 46-year-old woman, Memunatu Warne, died at the address.
Detectives from the Homicide and Major Crime Command investigate.
Anyone with information that could assist the investigation is asked to contact the incident room on 020 8721 4868 or contact via Twitter @MetCC and quote CAD 380/06SEP.
To give information anonymously contact Crimestoppers on 0800 555 111 or online at crimestoppers-uk.org.