The scene where a man was fatally shot in Southall in the early hours of Saturday morning (November 11) is being combed for evidence by police.
Armed police and emergency services were called to the incident in Lady Margaret Road at 1.23am to reports of a shooting.
Crowds gathered at the scene around a 26-year-old man who had suffered gun shot wounds.
London Ambulance Service (LAS) rushed him to a central London hospital in a critical condition but he sadly died at 3.32am.
A murder investigation was launched by Metropolitan Police on Saturday and the crime scene was scoured by police for evidence.
Officers from the Metropolitan Police Homicide and Major Crime Command are investigating and appealing for witnesses and those with information to come forward.
Detective Inspector Simon Stancombe said: "We are retaining an open mind as to the motive of this attack.
"We know that a large crowd gathered shortly after the shooting and some people within that group may well have witnessed what took place and seen the suspect(s) leaving the scene.
"It’s vital they get in touch so we can build on the information we have and find those behind this shooting."
No arrests have yet been made and police enquiries are ongoing.
Anyone who witnessed this incident or has information should call police at the incident room on 0208 358 0300 or via @MetCC. I nformation can also be reported anonymously to Crimestoppers on 0800 555 111 or online at www.crimestoppers-uk.org .
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