Safety fears over the liquefied natural gas terminal at Milford Haven in Wales were raised again last week after a worker was killed when a maintenance barge collapsed.
Seven other workers were rescued after the giant jack-up barge collapsed at the terminal on Saturday afternoon.
It is thought that one of the four legs on the huge JB104 barge, resting on the seafloor, gave way, tipping the vessel over at a 45 degree angle, and throwing seven men into the water.
They were picked up within minutes by vessels which came to the rescue.
But an eighth worker, 44 year old Adrianus van Ham, who worked for a sub-contracting firm, became trapped in the barge’s cabin.
Divers were unable to extract the body until the evening, because the barge was thought to be unstable and it was feared it could collapse on top of them.
The Health and Safety Executive (HSE) has launched an investigation.
The company has said it will hold its own full in depth investigation into the incident.
Allan Rappeal, the GMB union organiser, said, “The GMB is very shocked that this tragedy occurred.
“Since construction sites are very dangerous places the GMB and the other trade unions, and Chicago Bridge and Iron – the main contractor – have put in place the highest safety standards that should apply on the site.”
Earlier this year workers took industrial action over health and safety on the site and last month workers struck against racism.