A 20-year-old man has been stabbed to death in Tooting, south London.
A murder investigation has been launched by the Metropolitan Police's Homicide and Major Crime Command.
Officers were called by the London Ambulance Service at 3.47pm on Monday to reports of a stabbing in Penwortham Road.
The man died at the scene later.
Although he has not been formally identified, his next-of-kin have been informed.
A post-mortem examination has not yet been scheduled and police said their inquiries were continuing.
Anyone who witnessed the incident or has information is asked to contact police on 101 or Crimestoppers anonymously on 0800 555 111.