Four workers died tragically from asphyxiation Tuesday at a fish packaging facility in Dakhla.
According to local authorities, three other workers are currently under medical surveillance at the Hassan II Regional Hospital in the city. One of them is in intensive care.
The incident occurred when the workers attempted to rescue a colleague who was cleaning the pipes of the fish residue collection tank inside the building.
An investigation has been launched to determine the exact circumstances of the accident, added the source.