Police shot dead a man in south London on Sunday, and said at least two people were injured in a "terrorist-related" stabbing.

Videos and photos posted to social media appear to show several police officers surrounding a dead body on Streatham High Road.

"Please use common sense and restraint in circulating pictures and videos of the #Streatham incident, including images of the officers involved," London's Metropolitan Police tweeted.

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Police in London say they shot and killed a man on Sunday after a "terrorist-related" incident, and that several people have been stabbed.

"A man has been shot by armed officers in #Streatham. At this stage it is believed a number of people have been stabbed. The circumstances are being assessed; the incident has been declared as terrorist-related," London's Metropolitan Police (MET) wrote on Twitter.

The Daily Mail reported that the suspect killed by police appeared to have "silver canisters" strapped to his chest, and that the suspect appeared to grab a knife from a supermarket before stabbing at least one man and one woman.

The MET said in a second update that "there are two injured victims," and that they were awaiting an update on their conditions. While the scene was quickly contained, traffic was closed in both directions on Streatham.

In a statement, the London Ambulance Service confirmed it was called shortly before 2 p.m. local time and treated a number of patients at the scene.

—London Ambulance Service (@Ldn_Ambulance) February 2, 2020

Lambeth Police first announced the incident on Twitter at 2:29 p.m. local time.

Images posted to social media appear to show a body on Streatham High Road surrounded by police officers, but MET cautioned the spread of the photos and videos on social media, writing "Please use common sense and restraint in circulating pictures and videos of the #Streatham incident, including images of the officers involved."

Both UK Prime Minister Boris Johnson and London Mayor Sadiq Khan responded to the incident on Twitter.

"Thank you to all emergency services responding to the incident in Streatham, which the police have now declared as terrorism-related," Johnson wrote. "My thoughts are with the injured and all those affected."

Khan's statement said "I am in close contact with the Met Commissioner and local representatives, and want to thank our police, security and emergency services staff for their swift and courageous response. They truly are the best of us. Terrorists seek to divide us and to destroy our way of life – here in London we will never let them succeed."

The is a developing story, check back for updates.