By Hyunsu Yim and Jack Kim SEOUL (Reuters) -North Korea is getting ready to blow up roads that cross the heavily militarised border with South Korea, Seoul said on Monday, amid an escalating war of words after the North accused its rival of sending drones over its capital Pyongyang.

North Korea is escalating tensions on the world’s hottest peninsula by severing its last remaining connections to South Korea, as Kim Jong-un’s regime further isolates itself from the developed world.

SEOUL, South Korea -- In a symbolic display of anger, North Korea on Tuesday blew up the northern sections of unused road and rail routes that once linked it with South Korea, with the rivals exchanging threats days after the North claimed that the South flew drones over its capital Pyongyang.