A murder investigation has been launched by police after a teenage boy was found stabbed to death in south east London.
Metropolitan Police officers were called Sydenham at around 7.20pm on Saturday following reports of someone lying in the road.
Crews from the London Ambulance Service and London Air Ambulance also arrived at the scene, but he was pronounced dead shortly after 8pm.
The 17-year-old boy, who has not been named by police, was found stabbed in the street and was pronounced dead at the scene
Forensic officers attended the scene in Sydenham, south London, after the incident was reported earlier on tonight
A police cordon has been put in place with residents warned to expect an increase in the number of officers in the are in the coming hours
The Met Police say the young man's relatives have been told.
A crime scene is in place and forensic officers were seen combing the area after the incident.
The public have been warned to expect to see an increased police presence in the area in the coming hours.
Anyone who witnessed the incident is urged to call 101, providing the reference CAD6072/10APR, or to contact Crimestoppers on 0800 555 111.
The Metropolitan Police say the relatives of the stabbed 17-year-old have been informed as an investigation gets under way
Officers attended the scene in south east London with medics from the London Ambulance Service and
One shocked resident wrote on Twitter: 'Will put flowers down tomorrow. Was horrible to watch the cpr being given.
'We deserve safe streets for young people.'
Another added: 'My sincerest condolences to his family & friends may God rest his beautiful soul.'
Another said: 'Such a tragic waste.'
The incident comes a week after a man was knifed to death and two others were left in hospital after a 'triple stabbing' on a street in south London.
It followed a man, aged 19, being stabbed to death on the same street at around midday on March 3.
Multiple attacks also took place in Croydon on February 5, with one man killed and 10 people left injured.