Kim Jong Nam, the estranged half-brother of North Korean leader Kim Jong Un seen here in a May 2001 file photo, was alleged assassinated at the Kuala Lumpur airport last week.
TV screens in Seoul, South Korea, show images Wednesday of Kim Jong Nam, the half-brother of North Korean leader Kim Jong Un. On Monday, Kim Jong Nam was killed in Kuala Lumpur, Malaysia.
Kim Jong Nam, the half-brother of North Korean leader Kim Jong Un and the eldest son of former leader Kim Jong Il, waves to reporters on the Chinese island of Macau in 2010.
North Korean soldiers in a mass military parade at Kim Il-Sung square in Pyongyang on Oct. 10, 2015. North Korea conducted its first missile test of the year Sunday morning.
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Workers in Seoul's Yongsan ward office wait in a parking garage for an all-clear sign during a recent air raid drill. Concerned about a possible attack by North Korea, the South Koreans hold the drills twice a year.
North Korean leader Kim Jong Un looks at a warhead component being developed for a ballistic missile, at an unidentified location in this undated photo released by North Korea's Korean Central News Agency on March 15, 2016.
Mount Paektu, which sits on the border with China, is known in North Korea as the "sacred mountain of revolution" and considered the legendary birthplace of Kim Jong Il and Korean culture.