Thirty-nine people have been arrested on suspicion of attempted murder after a stabbing in west London in the early hours of New Year's Eve.
A man in his 30s was taken to hospital with life-threatening injuries after the incident in Fulham Palace Road in Hammersmith, the Metropolitan Police said.
The suspects were arrested at a property near the scene and taken into custody at several police stations.
Superintendent Mark Lawrence said: "Whilst it is unusual for so many people to be arrested in the early stages of an investigation such as this, due to a lack of cooperation and the necessity of securing essential evidence following a serious assault, this action was appropriate."
Two knives were recovered close to the scene, a spokesman added.
Police were called to reports of a stabbing in the street shortly before 1am.
Supt Lawrence added: "What appears to have been a minor argument has resulted in a man sustaining life-threatening injuries.
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"Officers were quickly on the scene and provided him with first aid prior to the arrival of our colleagues in the London Ambulance Service.
"He has been taken to hospital where he continues to receive treatment for his injuries."
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