South Korean officials are less than 24 hours away from formally announcing the results of a multinational investigation into the sinking of a South Korean warship. Many in South Korea see it as a near certainty that Seoul will explicitly blame North Korea for the deadly attack.South Korean media quoted Foreign Minister Yu Myung-hwan on Wednesday as saying it is "obvious" North Korea was involved in the sinking of the South Korean warship, the Cheonan.The vessel was patrolling disputed waters west of the Korean peninsula in March when an explosion ripped through it and sank it, killing 46 sailors aboard. Minister Yu was quoted as saying weeks of investigation by experts from South Korea, the United States, and other countries have brought the circumstances of the sinking "to clear light."