A man is fighting for his life after being stabbed at Notting Hill Carnival today and three 18-year-old males have been arrested for the crime.

The men, being held on suspicion of grievous bodily harm, brings the total arrests at this year's festival to more than 200.

At around 1pm today the victim, believed to be 19, presented himself at a London Ambulance Service treatment centre on Treverton Street at the junction with Ladbroke Grove.

Scroll down for video

A bloodied man stands by police at Notting Hill Carnival in west London today

Police gather at the scene of a stabbing after Notting Hill Carnival today in west London

Stabbing: A man is fighting for his life after being stabbed at Notting Hill Carnival today and three 18-year-old males have been arrested for the crime

He was then taken to a central London hospital, where he is being treated for life-threatening injuries, reports getwestlondon.

Two of the men arrested were also seized on suspicion of possession of an offensive weapon and the third was also arrested for possession of Class B drugs.

By 6.30pm, there had been 166 arrests in relation to Notting Hill Carnival today.

35 were arrested for carrying knives, five for assaulting a police officer, 55 for drugs offences and three for grievous bodily harm. Other offences included drink driving and criminal damage and one sexual offence.

Police officers stop a man selling 'laughing gas' canisters in the street in west London today

Police presence: By 6.30pm, there had been 166 arrests in relation to Notting Hill Carnival today

Yesterday police seized a total of 126 people in relation to the annual two-day event.

Meanwhile, around 3,500 nitrous oxide canisters - known as laughing gas - were seized by police officers this weekend - with a street value of up to £8,500.

This afternoon, an officer on patrol in Lonsdale Road, W11 was in the process of seizing 400 canisters from a man selling the canisters, which is illegal.

Whilst being processed, the man attempted to run away. He was detained and punched the officer in the face. The officer sustained a dislocated nose, split lip and swollen knee.

Laughing gas: Police officers seized up to 3,500 nitrous oxide canisters at Notting Hill Carnival today