China, which expressed frustration over Pyongyang's most recent nuclear test, also called for calm.
"We hope relevant parties can work together to turn around the tense situation in the region," Foreign Ministry spokesman Hong Lei said Friday, describing peace and stability on the Korean Peninsula as "a joint responsibility."
But the coming weeks appear laced with potential for more bouts of saber-rattling.
North Korean delegates are currently gathered in Pyongyang for the Supreme People's Assembly, the country's rubber stamp parliament.
And April 15 is the anniversary of the birth of Kim Il Sung, the nation's founder and the grandfather of Kim Jong Un. That day, the biggest national holiday in North Korea, is usually marked by large-scale parades.
Meanwhile, the U.S.-South Korean military exercises that have already stirred so much ire from the North are due to continue until the end of the month.
Finally, some analysts have noted that Pyongyang has carried out some sort of military provocation within weeks of every South Korean presidential inauguration.
Park, the current president, took office on Feb. 25, five weeks ago.