A woman who was eight months pregnant has been stabbed to death in Croydon and her baby is in a critical condition.
The victim was found at a home in Raymead Avenue, Thornton Heath, after emergency services were called to a woman having a cardiac arrest.
Police and paramedics arrived on Saturday at 3.30am and the woman, 26, died at the scene after being stabbed.
She has now been named by police as Kelly Mary Fauvrelle.
Her baby was delivered at the address and the child remains in a critical condition in hospital.
Police arrested a 37-year-old man on the same day and he has since been released pending further enquiries.
Another man, 29, remains in custody after he was arrested yesterday on suspicion of murder.
The victim's next of kin has been informed.
A neighbour has paid tribute to the victim, describing her as "just a nice girl".
Despite living in close proximity to the scene of the murder and being awake at the time of the woman's death, she said she did not hear or see any signs of an attack taking place.
She added: "I came back home between 1am and 2am. I was even talking on the phone in the back yard."
Detective Chief Inspector Mick Norman said: "This is a horrific incident in which a young mother has lost her life and her child is critically ill. Our sympathies go out to her devastated family; they are being supported by specially trained officers following this awful event, and I would ask that they are left alone at this time as they come to terms with the enormity of what has happened.
"A large crime scene is in place, and is likely to be in place for some time. Residents should be aware that if they have any concerns, or information they would like to share with us, that they can speak to any of the officers there, or call our incident room on 020 8721 4005. Alternatively please use the anonymous methods of reporting information to the police, such as Crimestoppers, if you wish.
"At the forefront of our enquiries is understanding what exactly has led to these tragic circumstances, and we are doing everything we can to establish the facts."
Anyone with any information should contact police on the dedicated Incident Room number of 0208 7214005, or ring 101 quoting CAD 1358/29 Jun or alternatively Crimestoppers on 0800 555 111.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here