North Korea threats South Korea of retaliation
It called for the South to apologise for the "reckless military provocation", which it said aimed to "drive the situation in the volatile hotspot to the brink of explosion".
"From now on, we will open direct fire on any warship of the South Korean puppet forces without warning, if it intrudes... even 0.001 mm in the hotspot of the West Sea," it was quoted as saying in a statement carried by Pyongyang's Korean Central News Agency (KCNA).
"They should be mindful that they would face our merciless retaliatory strikes anytime and at any place and in any way", it added.
It accused the South of responding to its efforts to create dialogue with "reckless military provocation".