A man is due in court later today after three women were stabbed in south London.
A 17-year-old girl remains in a serious but stable condition in hospital after she was stabbed in the head and hands at a flat in Tilson Gardens, Brixton.
Police were called to the property where they found the teenager's 28-year-old sister had also been attacked. She was later pronounced dead at the scene.
A post-mortem examination will take place today, police said.
A 46-year-old woman was repeatedly stabbed at another flat in nearby Redlands Way. She remains in hospital in a critical condition.
More top news
Police are investigating the death of a teenager who died shortly after an amateur boxing match held last night.
Labour leader says the UK "should not be afraid of debt or borrowing" as he urges the government to "stop dithering" and start investing.
A fundraising page for a Westminster terror attack victim has been taken over by JustGiving amid fears it was set up by a fraudster.