Police say they are carrying out a “fast-paced investigation” following the fatal stabbing of a 22-year-old man near Heathrow Airport.
Detective Chief Inspector Paul Waller, who is leading the investigation said: “Our officers responded quickly with London Ambulance Service and did everything possible to help the victim. Our thoughts remain with his family and friends.
“This is a fast-paced investigation, and enquiries are ongoing.
“Patrols from local Neighbourhood Policing Team have been increased in the area and anyone with any concerns is asked to speak to officers.
“Any information, no matter how minor it may seem, could prove crucial. CCTV, doorbell or mobile phone footage may provide vital evidence.”