Detectives investigating a stabbing that took place following a music event at Hackney Marshes are appealing for information.

Officers are keen to speak to those who attended the event to come forward with any footage or information that could assist the investigation.

Police were called by London Ambulance Service [LAS] at 0654hrs on Sunday, 18 August to reports of a stabbing at Hackney Marshes, E9.

Officers and LAS attended. At the scene a male, aged in his mid-twenties, was found suffering from stab wounds.

The injured male was taken by LAS to an east London hospital where he remains in a critical condition.

A second male, aged 19, was discovered unconscious nearby.

He was taken by LAS to an east London hospital. His condition is deemed not life threatening.

At this early stage it is believed that the two males are known to each other.

Officers from Central East command investigate. There have been no arrests. Enquiries continue.

Detective Constable Simon Johnston investigating said: “Hundreds of people attended the music event on Saturday, 17 August that ended with a young man fighting for his life in hospital.

“Did you see, hear, or happen to take footage of a violent incident on the Marshes? Do you have information that could assist the investigation? If you can help please don’t hesitate to contact police.

“Your information, no matter how small, could be a piece that is currently missing from the picture of last night’s events that we are building.”

Anyone with information should call Central East Command Unit on 101 quoting CAD2046/18AUG, Tweet @MetCC or call the independent charity Crimestoppers anonymously on 0800 555 111.

Any young people who have either information about violence or knife crime, can visit www.fearless.orgwhere they can pass on information anonymously – your I.P address will not be traced. Fearless is part of the Crimestoppers charity, and is also independent of the police.