[2][3] At some point during the surge, a metal railing collapsed outside the nightclub, causing people to fall off a walkway and land on top of one another, leading to multiple deaths and injuries.

[2] Six people were killed: Emma Fabini, 14; Asia Nasoni, 14; Benedetta Vitali, 15; Mattia Orlandi, 15; Daniele Pongetti, 16; and Eleonora Girolimini, 39, who was accompanying her 11 year old daughter to the event.

[3] Investigators scouring the building announced the discovery of a pepper spray can on 9 December, but did not confirm if it was responsible for triggering a surge for the exits.

[2] On 10 December, police announced the arrest of a 16-year-old boy and gang member who was suspected of setting off pepper spray in the nightclub while trying to steal a gold necklace from a female concertgoer.

[2] Sfera Ebbasta, the headliner for the concert, said in an Instagram post that he was saddened by the tragedy and announced his intent to suspend promotional events for the time being.