A man stabbed to death at the Notting Hill Carnival has been named as Takayo Nembhard, a 21-year-old rapper from Bristol.

Chris Patrick, who managed the rapper known as TKorStretch, said in a statement to the PA news agency: “As you can imagine we are all in shock.

“He went to Carnival with his younger sister and friends to have a good time.

“This is the worst possible ending for a talented kid.”

A murder investigation was launched after the stabbing on Monday night.

The 21-year-old had more than 300,000 plays on one of his songs on Spotify, and nearly 11,000 monthly listeners.

Mr Patrick, in a post on Instagram, recalled his first meeting with TKorStretch when the rapper was just 19.

“That meeting took us on a journey…we recorded some great music together. His talent was endless and I can tell you guys he was close to greatness!”

He hailed his friend as a “good kid, a good guy” and said what happened “breaks my heart”.

Police and paramedics provided first aid treatment to TKorStretch and he was taken to hospital, where he later died.

Mayor of London Sadiq Khan said he was “sickened” by the stabbing.

“Violence has no place on our streets and we are doing everything in our power to root it out,” he added.

Several other stabbings and violent incidents were also reported, police say.

In a statement, the Metropolitan Police said that at about 8pm on Monday evening officers became aware of a stabbing in Ladbroke Grove, under the Westway flyover.