thank you for joining us. the latest is that south korea will strongly retaliate if there is any addition al provocation from north korea. what more are you hearing and seeing there? >> well, south korea's military is on high alert. that was the order given by the president yesterday as well to strongly take action against any further provocation from north korea. we are hearing out of north korea state news conference that kim jong-un called and told them to be fully battle ready, ready to launch surprise operations from anytime in the next few hours. that after it issued an ultimatum yesterday. this followed the exchange of artillery fire at the border, not far from where i am right now. what happened is south korea reported two shells being fired in its direction along the demilitarized zone, known as the dmz. pyongyang said that south korea must stop broadcasting