Singapore authorities have reportedly been unable to determine the cause of a fatal fire on board a containership in March 2018.

The 15,000-teu Maersk Honam (built 2017) caught fire in the Arabian Sea in an incident that claimed the lives of five of the Singapore-flag ship’s crew.

The accident investigation report was issued this month by Singapore's Transport Safety Investigation Bureau (TSIB), according to Roose & Partners.