South Korean divers retrieved three bodies from inside a sunken ferry overnight, officials said on Sunday, the first time they have been able to gain entry to the passenger section of the ship, Reuters reported. What was a search-and-rescue mission has now turned into an attempt to retrieve more than 200 bodies - many of them children - from the wreck of the ferry that capsized on Wednesday on a routine trip in calm waters. "At 11:48 p.m. (1448 GMT) the joint rescue team broke a glass window and succeeded in getting inside the vessel," the South Korean government said in a statement. The discovery of the bodies brought to 36 the official death toll from what looks to be South Korea's deadliest maritime accident in 21 years. There are still 266 unaccounted for among the 476 people now believed to have been on the ferry. Out of the people on the vessel, 339 were either pupils or teachers.