Two more robberies have been reported on vessels in Venezuela and Indonesia.
On 24 May, two raiders armed with a machete boarded a product tanker at anchorage in Dumai anchorage, Indonesia, according to the IMB's piracy reporting centre.
Crew raised the alarm and mustered, but the men escaped with stolen ship’s property.
On the same day, six robbers boarded a general cargoship off Isla Boraccha at Pozuelos Bay anchorage in Venezuela.