They aren't mentioned in the story but maybe those Somali Pirate types; or anyone.
Pirates attack oil tanker near Bab al-Mandab
A major pirate attack on an oil tanker has been reported on Wednesday while it was transiting the Bab al-Mandab Strait en route from Ukraine to India, coalition spokesman Major General Ahmed Assiri exclusively confirmed to AlArabiya.net.
The pirates fired a rocket-propelled grenade at LNG tanker Melati Satu, Assiri told AlArabiya.net.
The crew of the Tuvalu-registered tanker sent a distress call that was received by a UAE ship and passed it to the Saudi Arabian naval ship Majesty Riyadh.
Read More At: https://english.alarabiya.net/en/News/middle-east/2016/10/27/Pirates-attack-oil-tanker-near-Bab-al-Mandab.html