The captain of a Turkish tanker had not slept for more than two days before the vessel's costly crash into a US Gulf offshore oil platform.
The US National Transportation Safety Board (NTSB) said the 159,500-dwt suezmax Atina (built 2015), managed by Besiktas Ship Management, caused $72.9m of damage to the SP-57B rig in the accident on 17 October off Louisiana.
