From BBC News:

A man has been shot dead by police in south London after he attacked people on a busy high street.

The attacker was under active police surveillance at the time of the incident, which police described as "terrorist-related".

Three people were injured, with one person in a life-threatening condition.

Gunshots were heard on Streatham High Road just after 14:00 GMT on Sunday. 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 the three people for injuries at the scene and all were taken to hospital. Of the other two, one had minor injuries and the third person's condition was not life-threatening.