North Korean leader Kim Jong Un has held a security meeting following what Pyongyang says were incursions by South Korean drones across the border, its state media reported on Tuesday admid a pickup in tensions between the two countries.

Now North Korea is blowing up roads, and Kim Yo Jong, the dictator’s sister, has warned ‘military gangsters’ in South Korea ‘will have to pay a dear price’. Kim Jong Un ‘no longer sees South Korea as a state’, Dr Edward Howell, a North Korea expert at the University of Oxford, told Metro.

The move follows a recent exchange between the North and South Korea in which Kim Jong-un's regime accused its southern counterparts of launching drones over its territory