A murder investigation has been launched after an 18-year-old man was fatally stabbed at a residential address in Greenwich.
Police were called by London Ambulance Service to Topham House, Prior Street, Greenwich at 9.41pm on Saturday, 8 December following reports of a man stabbed and unresponsive.
Officers and paramedics tried to revive the teenager but he was pronounced dead at the scene a short while later.
His next of kin have been informed.
A post-mortem examination will be held in due course. Formal identification awaits.
One male aged, 17, has been arrested in connection with this incident. He remains at a South London police station for questioning.
A crime scene remains in place.
Detectives from the Homicide and Major Crime Command are investigating along with police in Greenwich.
Police are appealing for witnesses and those with information about this attack to contact police them 101 quoting CAD 7621/8Dec or calling Crimestoppers anonymously on 0800 555 111.
You can also visit https://crimestoppers-uk.org/give-information/forms/give-information-anonymously
You can also tweet information to police via @MetCC