Earlier this month Somali pirates release German ship held since May . The U.S. Navy says the pirate attack was a "deliberate attack" and that it is investigating whether any Americans were on board. The waters off Somalia are rife with pirate activity , despite increased measures by military forces and shipping companies to ward off attacks . Gulf of Aden , off northern Somalia , has the highest risk of piracy in the world .
Earlier this month Somali pirates release German ship held since May . The U.S. Navy says the pirate attack was a "deliberate attack" and that it is investigating whether any Americans were on board. Gulf of Aden , off northern Somalia , has the highest risk of piracy in the world .