PETALING JAYA, July 4 -- National men's singles shuttler Lee Zii Jia has sparked concern among badminton fans after sharing a series of disturbing images on his Instagram account.

The post featured several black-and-white illustrations without any explanation or caption.

There are 10 illustrations in the post, including one of a faceless, stitched-up figure holding a long, blood-stained needle.

Another image showed a person lying on a sofa with sharp objects piercing their body and an exposed brain.

The disturbing nature of the post has raised concerns among fans over the 27-year-old's emotional wellbeing and state of mind, especially as he remains on the sidelines while recovering from a foot injury.

Zii Jia has only competed in two...