Seoul

 Washington Post: ‘It was almost post-apocalyptic’: A reckoning awaits Seoul’s crowd tragedy By Michelle Ye Hee Lee, Kelly Kasulis Cho, Stephanie McCrummen, Annabelle Timsit and Praveena Somasundaram

“And if this continues, and that’s what happened, then all the people in that zone will no longer have enough oxygen, even after they faint, and will die one after the other.”