The $30 million party that turned deadly

A 16-year-old boy has been arrested on suspicion of murder after a 15-year-old boy was stabbed to death at a house party in north-east London. The incident has left the community reeling and raised concerns about the city's party culture.

According to the Metropolitan Police, officers were called to the Mabley Green area of Hackney shortly after 7.15pm on Monday after reports of a stabbing and disorder.

Brayan David Saldarriaga,15,from Haringey in north London, was found with stab wounnds in Poplar Close and despite the efforts of emergency services he was pronounced dead at the scene.

An armed person in black: the shocking witness accounts

Witnesses reported seeing an armed person dressed in black clothing , carrying what appeared to be a large machete, running towards the fleeing crowd.

Teenagers and revellers were seen screaming and fleeing the scene in panic, including people running towards Hackney Marshes.

An armed person dressed entirely in black clothing, seemingly wielding a large machete knife, was captured running in the direction of the fleeing crowds.

Police appeal for witnesses and footage

The Metropolitan Police are urging anyone who witnessed the incident or has footage of the incident to come forward to police - your information could be vital.

Anyone with information is asked to call police on 101, quoting CAD 6692/25May. Alternatively, you can provide information anonymously to Crimestoppers on 0800 555 111.

What auditors flagged in the May filing

The incident has raised concerns about the city's party culture and the impact it has on the local community.

According to Detective Chief Inspector Lucie Card , who is leading the investigation, 'Our thoughts remain with Brayan's loved ones following this tragic incident . They have asked for privacy as they come to terms with Brayan's death and we ask that their wishes are respected.'

Who is the unnamed buyer?

The alleged attacker was arrested on Thursday and remains in custody, the Metropolitan Police said.

However, the identity of the 16-year-old boy arrested on suspicion of murder remains unknown.