Somali sources reported hijack of cargo ship in Somali waters, which took place on Dec 9. The ship was released on Dec 13, after Puntland Marine Forces approached pirates and threatened to free the ship by force.
Aris 13 March 2017 - EU Naval Force
Cargo ship was identified as ARS 13, en route from Djibouti to Mogadishu Somali.
The same vessel was held and released in March 2017 after the pirates said they had agreed to forego a ransom after learning that Somali businessmen had hired the Aris 13, which was taking oil from Djibouti to the Somali capital, Mogadishu. Pirates have traditionally been wary of tangling with Somalia’s powerful businessmen.