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A motorcade carrying top leader of the Democratic People's Republic of Korea (DPRK) Kim Jong Un drives into Singapore's Sentosa Island on June 12, 2018. (Xinhua/Then Chih Wey)

SINGAPORE, June 12 (Xinhua) -- Top leader of the Democratic People's Republic of Korea (DPRK) Kim Jong Un left his hotel in Singapore Tuesday for a historic summit with U.S. President Donald Trump.