A total of 39 people arrested following a stabbing in a west London street have been released from custody.
A group of 20 males and 15 females, all aged between 16 and 22, have been released under investigation.
A further four males have been released on bail until late January. They are:
[A] An 18-year-old man
[B] An 18-year-old man
[C] A 17-year-old boy
[D] A 16-year-old boy
Police were called to Fulham Palace Road in Hammersmith, shortly before 01:00hrs on Monday, 31 December, to reports of a stabbing.
Officers and the London Ambulance Service attended.
A man, believed to be aged in his mid-30s, was found with stab injuries. He was treated at the scene by officers and paramedics before being taken to hospital where he remains in a stable condition.
It was established that the victim had been chased by a number of male and female suspects following an altercation in a shop.
The suspects were seen a short time later entering a nearby residential address which was hosting a party.
Additional officers, including the Territorial Support Group, attended this address and attempted to speak with a large number of people who were inside. As the occupants failed to co-operate with police, a total of 39 people were arrested on suspicion of attempted murder. They were all taken into custody at various police stations.
Superintendent Mark Lawrence, said: "What appears to have been a minor argument has resulted in a man sustaining life-threatening injuries.
"Officers were quickly on the scene and provided him with first aid prior to the arrival of our colleagues in the LAS. He has been taken to hospital where he continues to receive treatment for his injuries.
"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 co-operation and the necessity of securing essential evidence following a serious assault, this action was appropriate."
Two knives were recovered close to the scene. Enquiries continue to establish what happened.
Anyone with information is asked to call police via 101 quoting reference 302/31Dec. Alternatively, please contact Crimestoppers anonymously on 0800 555 111 or via the crimestoppers-uk.org website.