A murder investigation has been launched after a 19-year-old man was fatally stabbed in southeast London.

The Metropolitan Police responded to reports of an assault on Rye Lane, near the junction of Heaton Road, in Peckham Rye at 7.09pm on Saturday.

A man was treated by police and the ambulance service at the scene, but died later in hospital, the force said.

The victim's next of kin have been informed and are being supported by specialist officers.

No arrests have been made.

Superintendent Gabriel Cameron, from the Met, said: "No one should lose their life because of knife crime.

"This morning, family and friends are waking up without their loved one. Our thoughts are with them at this incredibly difficult time.

"We understand the impact a crime like this has on the community and you can expect to see an increased police presence in the area. If you are a local resident, please do share any concerns with our officers on the ground.

"In the meantime, our detectives are working meticulously to identify those responsible, and piece together what happened."

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A post-mortem examination will take place in due course, police said.

Anyone with any information is urged to contact the Met via 101.