A 28-year-old man was rushed to hospital after being shot in south-west London.
Armed police stormed a residential road in Merton on Thursday night following reports of a shooting.
Officers discovered a man suffering with gunshot wounds.
He was taken to hospital where he remains with injuries deemed serious but not life-threatening.
The Met’s gangs unit are investigating the incident.
Detective Inspector Edward Facer, said: "We would appeal for anyone who was in the area at the time and witnessed the incident to contact us, no matter how insignificant they think that information is.
“It is important we get as much information as possible to allow us to piece together what has happened and bring those responsible to justice."
A police statement said: “Police were called to Phipps Bridge Road in Merton, just before 20:50hrs on Thursday, 23 March to reports of a man having been shot.
“Detectives from the Met's Trident Gang and Area Crime Command are investigating and are appealing for information about the incident.
“No arrests have been made and enquiries continue.”
Anyone who witnessed the incident or who has any information is asked to call Trident officers on 020 8247 4863.