According to his father Marcin, the young boy had attempted the so-called “blackout challenge,” a dangerous trend circulating on platforms like TikTok.

The challenge encourages kids to choke themselves — often with a scarf — to the point of unconsciousness, in a disturbing attempt to achieve a brief high from oxygen deprivation.

Police confirmed: ”Officers attended the location and the boy was taken to hospital where it was later confirmed that he had died. Enquiries are ongoing on behalf of the West Yorkshire Coroner to establish exactly what happened. The incident is not being treated as suspicious.”

A GoFundMe created by family friends paints a vivid picture of who Sebastian really was: “Sebastian was only 12 years old. A boy full of dreams, passion, and incredible talent. He taught himself to play the guitar and keyboard, and he loved to draw. Always smiling