In Longjing, China, more than 40 people were reportedly injured at the Yulong Shuiyun Water Amusement Park when an electronics failure at their "tsunami pool" generated unexpectedly massive waves.
From the South China Morning Post:
Five people were still being treated in hospital for injuries, including fractured ribs, but their condition is stable, according to a notice posted on Weibo by the Longjing city government on Tuesday.
“According to the initial stages of the investigation, the incident was caused by a power cut that damaged electronic equipment in the tsunami pool control room, which led to the waves in the tsunami pool becoming too big and injuring people,” the notice said.