Homicide police are investigating the death of a man in Streatham after an altercation on Friday.
Police were to a home on Fernwood Avenue just before 2.30pm to reports of a fight.
They found a man there, aged in his 50s, unresponsive. He was taken to hospital in a critical condition.
A 38-year-old man was arrested at the scene and has been bailed pending further enquiries.
On Saturday, police were told the man taken to hospital had died. Detectives said they believe they know his identity but enquiries are ongoing to identify and locate next of kin.
An urgent police investigation is underway, DCI Laura Nelson said, adding that officers were retaining an “open mind” over the man’s death.
“I know that local people will be shocked and upset by this incident,” said DCI Nelson.
“I share their concerns and assure them that my colleagues and I are doing all we can to establish what led to this tragic death.
“At this early stage, I must retain an open mind. A post-mortem examination will be held in due course, and this, along with other lines of enquiry will help to establish exactly what happened.”
A crime scene remains in place.
