Oneof the vessels involved was Transpetrol’s 153,704-dwt shuttle tanker Cartola(built 2000), while the identity of the second ship was not disclosed.

Detailsof both attacks feature in the latest piracy report from UK-based securityconsultants AKE Maritime.

On11 September four robbers gained access to the poop deck of theunnamed tanker engaged in ship to ship (STS) operations.

Alertcrewmembers deterred the robbers, who then retreated. However no response wasforthcoming from port authorities when notified of the incident by radio.

Fourdays later four robbers also gained access to the Bahamas flagged Cartola, butretreated when the crew was mustered.

“Attempted robberies at Indonesian anchorages regularly involve threats oractual violence directed at crew members,” said AKE Maritime.

“Evenwhen mustered, crews should remain aware of the potential dangers of furtherconfrontation during attempted robberies.”

Inmid-July a Greek-owned tanker was subjected to a similar attack by four armedrobbers whilst engaged in STS operations off Nipah Anchorage.

Theincident involved the 107,113-dwt Panama-flagged Aframax Rio (built 2004), butthe robbers retreated to their boat when the alarm was raised.

Separately,an Eitzen Chemical tanker was involved in a suspected robbery attempt at GesikPort, Indonesia.

The16 September incident saw a single robber boarded the 12,934-dwt Singaporeflagged chemical tanker Fen (built 2006) and stole paint stores beforeescaping.

Shipownersoperating in Indonesia face one of the highest chances of a piracy attack inthe world where around one-third of sea crimes occur.

Almostall attacks are opportunistic ‘smash and grab’ type robberies on vessels inport or at anchor, according to AKE intelligence analyst Rory Lamrock.