Photo: WENN
Three girls died and a further two were in critical condition after an EDM Halloween show in Madrid, headlined by Steve Aoki.
According to Spanish newspaper El Pais, Katia Esteban Casielles, Rocío Oña Pineda and Cristina Arce de la Fuente were all aged 18-20 and were reportedly crushed during the show.
The gig took place at the Thriller Music Park and the crowd reached an estimated 10,600 people - which is the venue's capacity. Two more girls, María Teresa Alonso Vinateo and Belén Langdon, are currently in the hospital in critical condition.
It's not yet known why the crush occurred as, according to Deputy Mayor Miguel Angel Villanueva, only 9,650 tickets were sold - although it's is unclear how big the crowd actually was. Villanueva also stated that all of the emergency exits were functioning properly and that Diviertt, the organisers of the show, had all the permits needed.
Steve Aoki: onstage during the 2012 Deadmeat North American tour.
Police are currently investigating whether there were suitable security measures in place, after reports from witnesses that a firecracker or flare went off near the venue's entrance, and caused an "avalanche" of people.
Steve Aoki posted on a statement on his website, writing: "I was devastated to hear that three people had died during a crowd rush at one of the exits. The safety of my fans has always been my top priority and had I known that there was any distress putting people in jeopardy within the venue I would have ended my show immediately.
"My show in Bilbao Spain tonight will be cancelled out of respect for those who lost their lives and those who are injured.
"I would like to express my deepest condolences and heart felt prayers to the families and loved ones during this difficult time."