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.

The spokesperson said that "grave touch-and-go military tensions are prevailing on the Korean Peninsula" because of the South Korean drone launches. In a separate statement later Sunday, the spokesperson said that the entire South Korean territory "might turn into piles of ashes" following the North's powerful attack.