Source: United Kingdom London Metropolitan Police
Detectives investigating a serious assault in central London were appealing for information to identify a man they wished to speak with.
He has now been identified and the 32-year-old man was arrested on Thursday, 17 December on suspicion of causing grievous bodily harm. He was taken to a central London police station where he remains at this time.
The investigation relates to an incident in which a man was found unconscious on Cambridge Circus, W1 at 22:35hrs on Tuesday, 15 December.
The 51-year-old victim was taken by the London Ambulance Service to a west London hospital where his condition is described as life-threatening.
Enquiries are ongoing.
Anyone with information relating to this incident should call police on 101 or Tweet @MetCC quoting Cad 7882/15DEC. To remain 100% anonymous call Crimestoppers on 0800 555 111 .