Two bulkers have reported suspicious approaches by smaller vessels in the Gulf of Aden.
The incidents occurred within 4 nautical miles (7 km) of each other on 13 and 14 January.
Security consultancies Dryad Global and Ambrey reported that both ships were heading eastbound about 34 nautical miles (63 km) north-west of Pointe A in the International Recommended Transit Corridor (IRTC).