Pirates seize control of oil tanker and Danish-owned ship off African coast.

Pirates have hijacked a Liberian-flagged oil tanker with 16 crew members off the coast of Congo in West Africa's Gulf of Guinea. The crew sought refuge in a citadel, and the nationalities of the crew members and pirates are not known. The Gulf of Guinea is the world's most dangerous spot for attacks on ships, and this hijacking took place further south in an area that is not typically attacked by pirates. The exact location of the tanker is not known, and international authorities have been alerted.