Police were called around 7.30pm yesterday evening (August 2) to a home on Monson Road in New Cross.
Medics tried to save a 26-year-old with stab wounds but he died at the scene.
A 26-year-old was arrested on suspicion of murder âa short time afterâ and remains in custody.
Detective Chief Inspector Lucie Card, who is leading the investigation, said: âOur thoughts are with the family and friends of the victim at this difficult time.
“I understand this incident will be concerning and we are carrying out a fast-paced and thorough investigation to establish the circumstances. I would encourage anyone who has not yet spoken to us.”
A Met Police spokesperson said: âAnyone with information about the incident who hasn’t yet spoken to officers is asked to call 101 quoting 6271/02AUG or message @MetCC on X.
âYou can also provide information anonymously to the independent charity Crimestoppers on 0800 555 111 or online.â
