Kim's journey to the summit, though shorter, was even more protracted. To get to Hanoi, he took a nearly 70-hour train ride through southern China and then traveled from a Vietnamese border town in his limousine. Hours ahead of his border crossing at Dong Dang, footage from Japanese TV network TBS showed Kim taking a pre-dawn smoke break at a train station in China, a woman who appeared to be his sister, Kim Yo Jong, holding a crystal ashtray at the ready.