North Korea has never announced who would follow leader Kim Jong Un in the event he is incapacitated, and with no details known about his young children, analysts say his sister and loyalists could form a regency until a successor is old enough to take over.
South Korean and Chinese officials have publicly cast doubt on reports that Kim was gravely ill following a cardiovascular procedure, after his absence from a key state anniversary event on April 15 triggered speculation about his health.
But the media reports sparked questions about who is in place to take over if Kim, thought to be about 36, a third-generation hereditary leader, fell seriously ill or died.
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