Officers from Lewisham are appealing for information and witnesses following an assault which left the victim in a critical condition.
At around 01:40hrs on Wednesday, 2 November, police were called to reports of a man assaulted in New Cross Road near the junction with Deptford High Street, Deptford.
Officers and London Ambulance Service attended. The victim - a 39-year-old man - was taken to hospital suffering a serious head injury. His condition is critical.
Detectives from Lewisham CID have established that the incident followed a dispute in the street, resulting in the victim being punched and falling to the ground.
There has been no arrest at this stage.
Officers have released a CCTV still of a man they wish to speak to in connection with the assault. He is shown on CCTV near to the location of the incident.
Anyone with information that may assist police, or who can recognise the man shown in the image, should call Lewisham via 101. To remain anonymous call Crimestoppers on 0800 555 111.