Three men arrested on suspicion of murder, following the death of a man in Southall, remain in custody.
Police were called at 2349hrs on Sunday, 4 January to Clarence Street, Southall, to reports of an injured man.
The 41-year-old man was taken to a west London hospital, where he was pronounced dead at 0110hrs on Monday, 5 January.
Next of kin are aware, formal identification is yet to take place.
A post mortem examination will be held later today, Tuesday, 6 January, at Fulham Mortuary.
The three men, [A – 29 ys], [B – 20 ys], [C – 26 ys] were arrested yesterday, Monday, 5 January.
Detectives from the Homicide and Major Crime Command are investigating.
Officers are asking any witnesses or anyone with information, to contact the incident room on 020 7230 9375, or to remain anonymous, call Crimestoppers on 0800 555 111.