All crew have been reported safe after pirates targeted another vessel in the Gulf of Aden as the security threat there rises.

Piracy reporting body Maritime Security Centre — Horn of Africa (MSCHOA) issued an advisory notice following an approach by multiple skiffs to the 19,800-dwt product tanker Wawasan Emerald (built 2010) at 1042 UTC on Tuesday.

The Panama-flagged vessel was passing through the maritime security transit corridor (MSTC) at the time, about 40km south of Yemen, according to security consultancy Ambrey.