Kim Jong Un's sister arrives in South Korea for historic visit

North Korean leader Kim Jong Un's sister landed in the South Friday, the first member of Pyongyang's ruling dynasty to set foot in its rival since the Korean War.

Kim Yo Jong was part of a high-level diplomatic delegation led by the North's ceremonial head of state Kim Yong Nam -- its highest-level official ever to go to the South -- as the Winter Olympics trigger a diplomatic rapprochement between the rivals.

Kim Yo Jong (C) is the first member of Pyongyang's ruling dynasty to set foot in the South since the Korean War

Their white Ilyushin-62 jet, marked in Korean script "Democratic People's Republic of Korea", the North's official name, and its tailfin emblazoned with a Northern emblem, touched down at Incheon airport near Seoul.

The last member of the Kim family to set foot in Seoul was Yo Jong's grandfather Kim Il Sung, the North's founder, after his forces invaded in 1950 and the capital fell.

Three years later the conflict ended with a ceasefire rather than a peace treaty, leaving the peninsula divided by the heavily fortified Demilitarized Zone, and the two sides technically in a state of war.