Smoke signals - Kim Jong Un's sister rushed off her feet on Vietnam trip

Kim Yo Jong, sister of North Korea's leader Kim Jong Un runs after they arrive at the border town with China in Dong Dang, Vietnam, February 26, 2019. REUTERS/Stringer

HANOI (Reuters) - Ready with an ashtray at a railway station, taking away gifts of flowers and giving directions to staff, Kim Yo Jong has been rushed off her feet as personal secretary to her brother and North Korean leader Kim Jong Un in Vietnam.

Kim Yo Jong, who holds the title of vice director of the ruling Workers' Party, came to the world's attention at the Winter Olympics in South Korea a year ago, when her big smile and relaxed manner made her a hit with many south of the DMZ.