A 57-year-old construction worker from Sta Lucija was critically injured this afternoon on a construction site at Wied il-Ghasel near Mosta.
It is understood that stones fell from a crane as they were being lowered to the site.
The man was working in a shaft some two storeys below street level. Rescuers needed to be called to the scene to lift him.
They used a crane made available by the construction workers.