Two vessels have reportedly been approached and asked to stop by a boat claiming to be from Yemen's coastguard
Security consultancies Ambrey and Dryad Global said the incidents took place in the southern Bab-el-Mandeb strait on Wednesday, 28 nautical miles (52 km) south-east of Perim Island.
Odfjell's 49,000-dwt chemical tanker Bow Orion (built 2019) was approached while underway by a high-speed craft with 10 people on board.
