A man has been arrested on suspicion of murder following a quadruple stabbing at a business in south-east London.
Two men aged 58 and 27 were killed and another two taken to hospital following the stabbing on Long Lane in Bermondsey at about 13:00 BST on Monday.
A third man, in his 30s, who was detained in connection with the incident is in hospital in a life-threatening condition, and a fourth man in his 30s is also in hospital. His injuries are not believed to be life-threatening.
The victims were believed to have been known to each other, the Metropolitan Police said.