Up to nine people were arrested in one day as part of a police crackdown on knife crime.

Officers carried out warrants at addresses across London on Friday morning, including properties in Enfield, Southgate and North Finchley.

The warrants were carried out as part of Operation Furlong, which targets those believed to be involved in knifepoint robberies on public transport in the city.

Those arrested were all arrested on suspicion of conspiracy to commit robbery and are currently in custody:

- An 18-year-old man from North Finchley

- An 18-year-old man from Enfield

- A 20-year-old man from Southgate

- A 22-year-old man from Enfield

- A 15-year-old boy from Enfield

- A 16-year-old boy from Southgate

- A 15-year-old boy from Enfield

- A 15-year old girl from Enfield

- A 17-year-old boy from North Finchley

A number of knives were also seized during the investigation.

Detective Inspector Daren Bates said: “Operation Furlong is a citywide initiative to target those suspected of being involved with knifepoint robberies across the capital.

“Dozens of officers were involved in the warrants this morning and we’re pleased to report that 13 people have been arrested.

“Knife crime is not something we will tolerate. Anyone who carries a knife or uses a weapon…know that we will find you and we will prosecute.”