Handytankers Magic was recently built in China for Greece's Roxana Shipping. The mother ship appeared to be a "black-painted ship with black flag," and the tanker maintained contact with (unnamed) military authotities throughout the incident. After firing the RPG, the pirates broke off the attack. (Vostock Media, 04/22/09)
The attack ended when
the Dutch frigate De Zeven Provincien repulsed an attack by seven pirates on the petroleum tanker MT Handytankers Magic. The frigate tracked the pirates back to a "mother ship", which turned out to be a kidnapped Yemeni dhow and freed 20 captive fishermen. The 7 pirates were captured without a fight, but released as the Dutch did not have the legal authority to detain them...(Wikipedia, "List of ships attacked by Somali pirates," 12/31/09)