The incident involving the 107,113-dwt Aframax Rio (built 2004) took place last week, but details have only just emerged.
Details of the attack, which took place off Nipah Anchorage, feature in the latest piracy report from security consultants AKE Maritime.
The Panama-flagged tanker was boarded by four armed robbers, but they retreated to their boat when the alarm was raised.
A subsequent search of the vessel found that no items had been stolen, while the ship’s complement were all crew safe.
The
