A man in his twenties was rushed to hospital after being stabbed in north-west London.
Police were called to the scene of a knife attack at 4.25pm on Thursday in Craven Park Road in Harlesden.
Scotland Yard said no arrests have been made and officesr are waiting for an update on the victim's condition.
The London Ambulance Service were called to the stabbing, with paramedics, a doctor and an incident response officer attending the scene.
The victim was reportedly treated in the street before being taken to a major trauma centre.
An air ambulance was also seen by witnesses landing nearby.
Brent MPS tweeted on Thursday evening: "We’re working at the scene of a stabbing at 4.25pm in Craven Park Road #Harlesden #NW10.
"A man in his 20s has been taken to hospital; we await condition assessment. No arrest yet.
Anyone with information is asked to call 101 with the reference: 4804/18june.
