A man is in a critical condition after he was crushed by weights at an unstaffed gym in the Brisbane CBD. 

Paramedics were called to Snap Fitness on Turbot Street in Spring Hill just after 5.45am to find a man had suffered severe head and chest injuries.

He was taken to the Royal Brisbane and Women’s Hospital in a critical condition.

A fire crew was called in to help with the response. arriving shortly after 6.20am.

Image: 9News