The search continues for the bodies of 13 people still reported missing after a cruise boat capsized off the coast of Bahrain, killing at least 57 people.Among those who drowned are 17 Indians, 13 Britons, four South Africans and four Singaporeans. Victims also came from Pakistan, the Philippines, Germany and Ireland. The wooden boat was being used for a corporate party. Some reports say the vessel was overcrowded and the captain had been reluctant to leave shore. Some 70 people were plucked from the sea during the night.Officials say there is no indication the sinking was the result of an attack. It is understood the voyage on the cruise boat had been organised for workers involved in a construction project. Doubt has already been raised about whether the vessel was covered by insurance.