Security notices will be issued for 80 cranes throughout Melbourne after one man died and another was seriously injured in an incident at a Melbourne job site.
The two men were submerged in concrete when a tub fell from a crane at a construction site on Whitehorse Road in Box Hill on Thursday afternoon.
One man died at the scene and his 28-year-old colleague Caroline Springs was taken to the Royal Melbourne Hospital with critical injuries to the head, chest, pelvis and abdomen.
A third man was treated for minor injuries in the incident that left the driver of the crane, his colleagues and those who rushed to help traumatized.
CFMEU's secretary of state, John Setka, said the incident involved Clarke Cranes, the same company involved in the collapse of a crane in Richmond in June.
A union spokesperson told AAP that the company would be sent safety notices to stop the operation of cranes at 80 sites until all have been inspected.
A representative of Clarke Cranes declined to comment.
The union also organized counseling for workers on the site when the incident occurred, as well as for those who ran from the vicinity to help with the rescue effort.
The intensive care paramedic Gary Robertson said that it had been a particularly tragic event and that the driver and crane workers were incredibly traumatized.
"We have three men who were hit by this burden that was released, unfortunately, one has lost is life, which has been particularly traumatic," he said.
That man was submerged in concrete and trapped under "a good amount of weight".
The workers managed to free the seriously wounded man.
"Fortunately … at least they were able to get him out of that part, what will really have saved his life, he will have given him a chance," he said.
Seven people died in Victorian buildings this year.