Alternative metal band Bring Me The Horizon has said it is "horrified" after learning that a fan died at its Alexandra Palace gig.
Emergency services were called to reports of someone feeling unwell at the north London music venue on Friday shortly before 10pm but were unable to save the man.
"Words cannot express how horrified we are feeling this evening after hearing about the death of a young man at our show last night," the musicians tweeted.
"Our hearts and deepest condolences go out to his family and loved ones at this terrible time. We will comment further in due course."
Following the above statement, we would like to clarify that this was a tragic medical incident and unrelated to the extensive security measures in place. However, we feel we must address inaccurate information. There were over 150 security personnel on site for the concert.
— Alexandra Palace (@Yourallypally) December 2, 2018
Alexandra Palace issued a statement on Twitter, offering condolences to the concertgoer's family.
It said: "A medical incident occurred at last night's Bring Me The Horizon concert.
"Our thoughts and condolences are with the individual's family and we would like to express our deepest sympathy to them. We hope you can appreciate we cannot provide any further comment at this time."
The venue added to its statement on Sunday, saying: "We would like to clarify that this was a tragic medical incident and unrelated to the extensive security measures in place.
"However, we feel we must address inaccurate information. There were over 150 security personnel on site for the concert."
A London Ambulance Service spokesperson said the man died at the scene.
They said: "We sent an ambulance crew, a paramedic in a fast response car, an advanced paramedic and our hazardous area response team to the scene. Our first medic arrived in less than three minutes.
More from london
"Sadly the patient died at the scene."
It is not known how the man died but police said they were not treating the incident as suspicious.