A man has been shot dead by officers in a "terrorist-related" incident in south London, the Met Police have said.
It is believed two people have been injured in stabbings on Streatham High Road.
Gunshots were heard just after 14:00 GMT on Sunday. Police later said the scene had been "fully contained".
Prime Minister Boris Johnson tweeted that his thoughts were with the injured and others affected. He thanked emergency services for their response.
London Ambulance Service said it was treating a number of people at the scene.