11-year-old Tommie-Lee Billington lost his life after completing a popular TikTok challenge.

The boy from Lancaster, England, was at a friend’s house for a sleepover on Saturday when they discovered the challenge on the app TikTok and decided to try it themselves. Sadly, the TikTok craze went tragically wrong and Tommie lost his life.

The challenge involves inhaling dangerous gases or solvents that cause a high. Examples include dry shampoo, spray deodorant, and glue.

The moment Tommie inhaled the gas, he went into cardiac arrest and died instantly.

“The hospital did everything to try and bring him back but nothing worked. He was gone,” his grandmother, Tina Burns said.

“He had a heart of gold just like his dad. Our family is utterly devastated.”