A man has been shot dead by police in south London after he attacked people on a busy high street.
Three people were injured in what police described as a "terrorist-related" incident. One person is in a life-threatening condition.
Gunshots were heard on Streatham High Road just after 14:00 GMT on Sunday.
Some reports suggest a man entered a shop and started stabbing people. It appears he then left the shop and stabbed a woman, possibly a cyclist.
Witnesses reported hearing three gun shots and a man was seen lying on the floor, as armed police approached.
London Ambulance Service said it treated three people for injuries at the scene and all were taken to hospital. One had minor injuries and the third person's condition is not life-threatening.
One eyewitness told how he saw the shooting take place in front of a Boots pharmacy.
"I was crossing the road when I saw a man with a machete and silver canisters on his chest being chased by what I assume was an undercover police officer," he told the PA news agency.
"The man was then shot. I heard three gunshots."