A man in his 20s was left in a critical condition after he was stabbed in broad daylight in west London.
His injuries were later deemed to be not life-threatening, police said.
An air ambulance attended the scene, in London Road near Thornbury Park, alongside police officers.
A crime scene was put in place as officers investigated the incident, which emergency services were alerted to at around 5.26pm.
A statement from the Metropolitan Police said: “A male was discovered suffering from a stab wound.
"He was taken to an east London hospital.
"A male has been arrested on suspicion of obstruction and assaulting a police officer.”
Road closures were put in place with motorists warned to avoid the area.
Anyone with further information is asked to call 101 quoting 5799/20 Sept.
