A man has been stabbed to death in a south London street.
Police had been called to Great Dover Street, Southwark, at 17:30 BST on Wednesday to reports of males fighting when they found the victim.
The man, thought to be aged 19, was pronounced dead at the scene.
The Met said three males and a female have been arrested but gave no further details. A Section 60 order, giving officers additional stop and search powers, has been authorised.