A 48-year-old man has died after a workplace accident at Narrogin, in WA’s Great Southern.

The man was injured when he was hit by the prong of a pitchfork attachment on another forklift.

He was moving hay bales with a second forklift at Narrogin Hay yesterday.

He was flown to Perth but died in hospital overnight.

Worksafe staff have travelled to the site to investigate.