Two workers were killed Sunday morning in an incident at the Shell Auger Tension Leg Platform, 214 miles south of New Orleans in the Gulf of Mexico.
It happened around 9:00 A.M. during a routine test of lifeboat launch and retrieval capabilities.
Another person received serious, but non-life threatening injuries. The individual is recovering at a hospital.
The identities of the victims have not been released.
Shell says there has been no impact to the environment as a result of the accident.