India’s minister of external affairs Sushma Swaraj said on Twitter that 22 Indian nationals were onboard when the ship went missing.

The cause of the loss of communication is unknown and an investigation is underway in cooperation with Nigerian and Beninese authorities, the company informed.

The incident comes less than a month after the Marshall Islands-flagged tanker ‘MT Barrett’ became subject of a piracy attack in Gulf of Guinea. The tanker was at anchor off Benin, West Africa, when communications were lost on 10 January and the owner company, Union Maritime, confirmed that the ship had been hijacked. After captivity of six days, the ship was released and all 22 crew were reported safe.

Despite piracy data seem to decrease globally, the Gulf of Guinea has been a main security concern for vessels and crews, over increasing piracy attacks in the last months. IMB's annual report indicated the persistent danger in the region as a piracy highlight in 2017, with 10 incidents of kidnapping involving 65 crewmembers in or around Nigerian waters. Globally, 16 vessels were also reported being fired upon, including seven in the Gulf of Guinea.