New Delhi, Feb. 21 -- A disturbing social media challenge in South America has led to the tragic death of a 14-year-old boy, Davi Nunes Moreira. The teenager reportedly injected himself with a mixture of a dead butterfly and water using a syringe found in his room.

Initial reports suggest Moreira denied participating in the challenge, but this is disputed. The young boy from Brazil first told his father he injured his leg while playing. As his condition worsened, he admitted the truth. His father later discovered a syringe under his pillow.

The teenager initially felt unwell but soon experienced severe symptoms, including vomiting and loss of mobility. After a week in the hospital, he succumbed to complications.

Doctors suspect he may ...