This may be the same attack as that carried out against a bulk carrier (not further identified) in the Gulf of Aden the same day.
Two boats with five pirates in each boat chased and fired upon a bulk carrier with automatic rifles and RPG. An orange and white coloured mother vessel was noticed around 3 nm astern of the vessel. Master carried out evasive manoeuvres, increased speed and contacted coalition warship. A helicopter arrived at the location and the pirates aborted the attempt.(ICC/IMB Website)