The confirmed death toll from the South Korean ferry disaster climbed to 150 Wednesday, one week after the passenger boat capsized off the country’s southwest coast. Divers are slowly working their way through the third and fourth floors of the boat which is submerged upside down in murky waters and surrounded by a strong ocean current. More than 150 other passengers are missing and presumed dead. The captain and six crew members are under arrest. Most of the passengers were high school students, who were headed for an outing on the resort island of Jeju.