A worker died on Wednesday during construction work at Hydro's aluminium products plant in Hamburg, Germany.
The reason for the incident is unclear at this point and subject to investigation. Hydro is cooperating with the police to clarify the circumstances.
The 34-year old man was not a Hydro employee, but belonged to the contractor company Prien. He leaves behind a wife and two children.
Hydro's Rolled Products business sector has more than 600 employees in Hamburg, most employed in the rolling mill.