One person has died of their injuries after being left critically injured following a crush outside a south London venue hosting a concert by Nigerian Afrobeats singer Asake, UK police said on Saturday.
The 33-year-old woman who died had been one of three people seriously injured in the incident on Thursday evening.
Emergency teams were called to the O2 Academy following reports that "a large number of people were attempting to force entry to the venue", the Metropolitan Police said earlier.
Officers, ambulance crews and fire brigade responders arrived to find numerous people with injuries caused by the crush.
Eight people were taken to hospital by ambulance while two "less seriously injured" were treated at the scene.
Police said on Saturday two other women aged 21 and 23 remained in a critical condition in hospital.
The victim was named as Rebecca Ikumelo from London.
Police are appealing for the around 4,000 people who were present at the scene to submit photos and videos of the scene to an online page.