A teenage boy has been stabbed to death after a fight at a house party in the London borough of Hackney, the Metropolitan Police say.Officers were called after a large group of people with machetes were seen on Towpath Walk shortly after 7.15pm on Monday.Some callers also suggested that they had heard gunshots.The boy was found with stab wounds in nearby Poplar Close.Despite the efforts of medics from both the land and air ambulance, he was pronounced dead at the scene.Detectives are working to formally identify the victim and inform his family of his death.The Met said that he was a teenager, but did not give an exact age.The Metropolitan Police is asking anyone with information or footage to come forward (PA Archive)“Our thoughts remain with the victim and his family – we are working at pace to ensure all his loved ones are informed and offered specialist support from officers,” Detective Chief Inspector Ben Massink said on Tuesday.“For members of the local community, who will no doubt be shocked and saddened by the events of yesterday evening, increased police patrols are in place in the area. If you have any questions or concerns, do not hesitate to speak with one of our officers.“Urgent enquiries continue to establish exactly what happened. We know there were a significant number of people in the area at the time of the stabbing, and some individuals recorded the incident on their mobile phone.“I would urge anyone who witnessed what happened or who has footage of the incident to come forward to police – your information could be vital. I would also ask those with videos or photographs not to post this on social media out of respect for the bereaved family.”Anyone with information can call police on 101, quoting the reference CAD 6692/25May, or to remain anonymous contact Crimestoppers on 0800 555 111 or online.