After the formalities, came the collapse of key military talks between the two Koreas. And now the North says no new such negotiations are possible.
Both sides blame each other for the breakdown.
North Korean state television had this message for those over the border, read by a newscaster.
“In a situation where (they) do not wish for the improvement of North-South relations and are refusing dialogue itself, our military and people no longer feel the need to be associated with the South.”
Analysts said the breakdown was inevitable as both sides came to the negotiating table with different issues.
The South wants an apology from its northern neighbour over two attacks last year which killed 50 people.
But Pyongyang denies sinking a South Korean warship. And its says Seoul provoked its artillery assault on a South Korean island by test-firing shells into its waters.
This week’s failed talks were the first such contact since the island attack in November triggered a wave of war-like rhetoric.
North Korea refuses more military talks with South