Crews aboard ships involved in the recovery effort at the site where a South Korean ferry sank continued to work as night fell Thursday. Nicolas Asfouri/AFP/Getty Images hide caption

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Yellow ribbons hang from a fence outside Danwon High School in Ansan, South Korea, as some students return Thursday for the first time since a ferry disaster claimed the lives of scores of their classmates. Yang Ji-woong /EPA/Landov hide caption

itoggle caption Yang Ji-woong /EPA/Landov

As the sun set Wednesday in Jindo, South Korea, a woman kept watch on the waters where the Sewol ferry sank. It's feared the death toll will reach 300. Nicolas Asfouri /AFP/Getty Images hide caption

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Cranes, ships and other rescue equipment are on the scene off the southern coast of South Korea, where a ferry capsized Wednesday. About 270 people, most of them high school students, remain missing. Kim Hong-Ji /Reuters/Landov hide caption

itoggle caption Kim Hong-Ji /Reuters/Landov

Holding out hope, fearing the worst: A man looks out from the shore in Jindo, South Korea, toward where a passenger ferry sank Wednesday and nearly 300 people are still missing. Kim Kyung-Hoon /Reuters/Landov hide caption

itoggle caption Kim Kyung-Hoon /Reuters/Landov

Rescuers head toward the ferry Sewol off the southern coast of South Korea on Wednesday. It sank while on a trip to a resort island. Several hundred people, most of them high school students and teachers, are missing. Yonhap News/EPA/Landov hide caption

itoggle caption Yonhap News/EPA/Landov

In this handout image provided by the South Korean Unification Ministry, Kim Kyou-Hyun (right) the head of South Korea's high-level delegation, shakes hands with his North Korean counterpart Won Tong-Yon before their meeting Wednesday in Panmunjom, South Korea. /Getty Images hide caption

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Chef Edward Lee moved to Louisville, Ky., 10 years ago to take over a restaurant called 610 Magnolia. There, he mixes the sweet of Southern food with the salt and umami of Asian cuisine. Dan Dry/Artisan Books hide caption

itoggle caption Dan Dry/Artisan Books

North Korean soldiers marched past statues of founder Kim Il Sung and his son, former leader Kim Jong Il, on Monday in Pyongyang. North Korea celebrated Kim Il Sung's 101st birthday. Kyodo /Landov hide caption

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A South Korean soldier stands at a military checkpoint connecting South and North Korea at the Unification Bridge last week in Paju, South Korea. Chung Sung-Jun/Getty Images hide caption

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On Wednesday, a North Korean soldier looked on from the banks of the Yalu River on the border with China. Wang Zhao/AFP/Getty Images hide caption

itoggle caption Wang Zhao/AFP/Getty Images

Japan is on full alert ahead of an expected mid-range missile launch by North Korea, its defense minister said as the U.N. warned of a potentially 'uncontrollable' situation. A Japanese soldier walks past a missile launcher deployed in Tokyo. Toru Yamanaka/AFP/Getty Images hide caption

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Carrying on as usual: Shoppers in central Seoul on Monday. Lee Jae-Won/Reuters /Landov hide caption

itoggle caption Lee Jae-Won/Reuters /Landov