A 40-year-old man has been arrested on suspicion of murder in connection with a series of stabbings across southwest London.
One woman was killed and two more injured during the attack. Police believe the victims were known to whoever carried out the attacks and are not looking for anyone else in connection with the incidents.
Metropolitan Police were called to an address in Redlands Way, Brixton following reports a woman had been stabbed. A 46-year-old woman was then taken to hospital with multiple stab wounds. She remains in a critical condition.
Thirty minutes later, police were called by the London Ambulance Service to an address less than a mile away in Tilson Gardens following reports that two women had been attacked.
A 28-year-old woman was pronounced dead at the scene and a 17-year-old girl was taken to a south London hospital suffering from stab wounds. She is in a serious but stable condition.
Police confirmed a 40-year-old man is being held in connection with the attacks. An investigation is under way to find out the man's motivation for the attacks.
DI Will Reynolds, from Met's Homicide and Serious Crime Command, said: "Our investigation is at a very early stage, however we are confident that there are no outstanding suspects. We believe that all three victims were known to the man who is currently in our custody, there is no suggestion that the victims were selected at random."
Chief supt Matt Bell added: "We are working with the local community to ensure that they are updated with the information that we can share with them. Local officers are out on patrol in the Borough and if local people are feeling concerned please come and talk to us."