In a statement, the police said it arrested a 21-year-woman, who was at the scene when officers arrived, on suspicion of murder. She was later freed pending further enquiries.
The statement read, “Officers attended along with the LAS and a 29-year-old man was found suffering from stab injuries.
“He was pronounced dead at the scene at 02:57 hours. Next of kin have been informed and formal identification has taken place.
“At this time the death is being treated as unexplained. A post-mortem examination took place at Northwick Park Hospital mortuary on Friday, 20 October which gave the cause of death as a single stab wound to the heart.