A 14-year-old boy has died of stab wounds at a South London hospital after police were called to a fight earlier in the evening.
Police were called to London Road, West Croydon, at around 6:30pm on Thursday, November 18 to reports of a group of people fighting.
When the police arrived, no suspects or victims were found.
At around 7pm police were then called to a South London hospital after a teenage boy self-presented at hospital with stab wounds.
The boy died a short time later.
His next of kin have been informed and a post mortem will be carried out in due course.
A Section 60 has been put in place in the areas of Broad Green, Fairfield, Waddon, west Thornton, Bensham Manor, Selhurst and Addiscombe West until 10.35am on November 19.
An investigation has been launched.
Superintendent Andy Brittain said: “This is a tragic loss of another young life to knife crime. Our thoughts are with his family and friends.
“We have worked throughout the night with our colleagues from Specialist Crime to establish what happened yesterday evening, and this investigation remains ongoing.
“I would urge anyone who has information regarding a fight that was seen close to West Croydon Railway Station at about 6.45pm to please come forward and speak with us. We need to identify who was there and what led to a 14-year-old boy being killed.
“Tackling violence remains our top priority but we need your help. A family is grieving; any piece of information you have could be vital in giving them the answers that they so desperately need.
“Local residents can expect to see additional officers in the area and a crime scene is still in place. If you have any concerns, please speak with officers or contact your local neighbourhoods team.”
Any witnesses, or anyone with any information is asked to call police on 101, quoting CAD 6179/18Nov, tweet @MetCC or call Crimestoppers, 100 per cent anonymously, on 0800 555 111.