A teenager has died and two others were stabbed in London yesterday. 

The stabbings took place in Bromley, Eltham and Islington.

After the third incident yesterday the police put out a statement to people appealing for any information about knife crime.

It said: "We would like to hear from anyone who has information about crime, those who carry a weapon, or those who exploit others for gain or revenge, while putting young people’s lives at risk.

"Community intelligence can be used to great effect to not only detect, but also prevent crime, keep London safe and save young lives."

>> Keep up to date with all the latest crime news from across London here

A teenager was found with stab wounds in Islington and died at the scene.

Police were called to North Road at around 8pm on Monday.

Any witnesses or those with information are asked to call 101 ref CAD 7154/14 Sept.

A 15-year-old girl was also stabbed in the leg near her school in Eltham.

Reports of a heavy police presence in Kingsground began to circulate social media at about 4.30pm on Monday with Eltham Hill School confirming that: "There has been an incident, but not on the school grounds."

In an email to parents it added: "A young man wearing a mask attacked one of our students by the Bingo Hall as she was leaving school and obviously other students who witnessed this were extremely frightened.

"The young man was carrying a knife and one of our members of staff along with a member of the public managed to get the knife off him.

"Our student is injured but is going to be fine and is receiving medical attention."

Police confirmed a person matching this description was detained.

The man, believed to be in his teens, was tasered by police.

He was then taken to hospital as a precaution, before being taken into police custody on suspicion of Grievous Bodily Harm.

Another teenager was "slashed" with a knife just hours earlier.

At around 2pm on Monday, reports started flooding in to a local Facebook page about police at Bromley College and a stabbing.

Police were called to the scene at 1.15pm and found an 18-year-old "suffering from a slash injury".

He was taken by the London Ambulance Service to a South London hospital for treatment, but his injury is not believed to be life-threatening.

Anyone with information is asked to call police via 101 quoting reference Cad 3354/14Sept.