The UK Maritime Trade Operations (UKMTO) reported there had been an 'incident' 95 nautical miles south east of Aden, though details of the incident remain scarce, Daily Mail reported.

The report only said the ship’s captain reported that the 'port side of vessel hit from above by a missile,' but did not identify the ship or elaborate.  It is currently not known who was behind the attack and an investigation has been launched. 

Private intelligence firm Ambrey said a US-owned bulk carrier carrying a Marshall Islands flag had been hit by the missile. 

The UKMTO warned ships to 'transit with caution and report any suspicious activity'. 

It comes less than a day after Yemen's army launched an attack against an American destroyer in the Red Sea.