Detectives have released an image of a man stabbed in Kennington in the hope of finding his friends or witnesses of the attack.
Dwayne Kevin Buchanan was found stabbed on Kennington Road, near the junction with Black Prince Road, at 11.38am on March 23.
The 30-year-old, who was living in the Kennington area but is believed to originally be from the West Midlands, was taken to a south London hospital by paramedics, where he remains in a critical condition.
His next of kin have been informed and there have been no arrests.
Detectives would like to hear from anyone who was in the area at the time who saw the assault, any of the parties involved, or anyone who saw the suspects leave the scene.
DI Sharon Steel from Lambeth CID said: “We know that Dwayne was subjected to a brutal assault and he remains in hospital in a critical condition, but we need more information.
“In addition to witnesses, we are appealing for any friends of Dwayne to come forward; rest assured that any information provided will be kept in strictest confidence.
“We really need anyone who knew Dwayne to get in touch, as it may be vital in helping us understand why he was attacked.”
Any witnesses or anyone with any information is asked to call detectives in Lambeth on 07785 774447 or contact via Twitter @MetCC quoting CAD 3033/23MAR.
To give information anonymously contact Crimestoppers on 0800 555 111 or online at crimestoppers-uk.org.