The MV Faina was seized on Sept. 24 and was carrying 33 T-72 tanks, grenade launchers and ammunition.
Below are some of the ships believed to be still held:
STOLT STRENGTH: Seized Nov. 10. The chemical tanker had 23 Filipino crew aboard. It was carrying 23,818 tonnes of oil products.
TIANYU 8: Seized Nov. 13/14. The Chinese fishing boat was reported seized off Kenya. The crew included 15 Chinese, one Taiwanese, one Japanese, three Filipinos and four Vietnamese.
CHEMSTAR VENUS: Seized Nov. 15. The tanker was travelling from Dumai, Indonesia, to Ukraine. It had 18 Filipino and five South Korean crew.
NAMES UKNOWN: Seized on Dec. 10. Pirates hijacked two Yemeni fishing vessels with a total of 22 crew in coastal waters in the Gulf of Aden. Five crew reportedly escaped.
NAMES UNKNOWN: Seized on Dec. 16. A yacht with two on board, an Indonesian tugboat used by French oil company Total. Pirates also hijacked the Chinese fishing vessel Zhenhua-4 with 30 Chinese crew aboard but it was freed the next day.
BLUE STAR: Seized on Jan. 1, 2009. The Egyptian merchant ship was sailing east with a cargo of 6,000 tonnes of urea, a product used as a fertiliser. It had 28 Egyptian crew aboard.
LONGCHAMP: Seized on Jan. 29, 2009. The liquefied petroleum gas tanker, built in 1990, has 13 crew on board, 12 Filipinos and one Indonesian. The tanker has a capacity of 3,415 tonnes.
Sources: Reuters/International Maritime Bureau Piracy Reporting