HANOI - North Korean leader Kim Jong Un's trip to Vietnam for a summit with US President Donald Trump was shrouded in mystery until a green train with yellow horizontal stripes was spotted crossing the Yalu river into China on Saturday evening.
Kim, his father and grandfather, North Korea's three leaders in succession since World War II, have all loved trains, but no one knew how Kim intended to make the journey to Hanoi for his second summit with Trump, on Wednesday and Thursday, until the train rumbled over the border bridge.
It is not clear if Kim will travel all the way to Vietnam by rail - it will take him some two and a half days to do so - and it is possible he could stop on the way and fly.
If he does choose to stay on the tracks, he will be travelling in style.
His train resembles the armoured ones his father, Kim Jong Il, and grandfather, Kim Il Sung, used over the years.
It has 21 carriages equipped with all-white conference rooms, dining cars and sleeping quarters.
Some carriages are decked out with pink leather chairs, big-screen televisions and ivory-coloured curtains hanging in the windows, North Korean state media has shown.
The train also has satellite phone connections so Kim can keep abreast of developments and issue orders, according to state television.
It also has a carriage loaded with his Mercedes Benz vehicle, South Korea's JoongAng Ilbo newspaper reported.