The incident occurred at around 2pm this afternoon on Dudden Hill Lane and neighbouring Cooper Road in Willesden Green, West London. Police and ambulance crews have attended the scene.
A witness told MyLondon that he heard a loud bang thinking it was a firework before coming out of their home to hear that it was a shooting.
He said police and air ambulance crews landed in the grounds of nearby College Of North West London.
They added to the publication: “I heard it. Two bangs.
“I knew it was a firearm. I’ve heard firearms before.”
A cordon has been established across Dudden Hill Lane and on Cooper Road by the Metropolitan Police.
A London Ambulance Service spokesperson, added: “We were called at 1.52pm today (11 May) to reports of an incident on Cooper Road, NW10.
“We sent an ambulance crew, two medics in cars, and an incident response officer.
“We also dispatched London’s Air Ambulance.
The alleged shooting is the second incident to take place in the London Borough of Brent.
Police were previously called to Church Lane, Kingsbury, at 4.15pm on Friday May 7 following reports of a firearm discharge.
No injuries were reported at the time, police say.
Gun and violent crime was a key part of the 2021 London Mayoral election with Sadiq Khan pledging to get “tough on crime and tough on the causes of crime.”
This includes putting even more police officers on the streets at the same time as investing record amounts in new opportunities for young Londoners.