Despite recent threats by the North to seek a new path, analysts say the nature and presentation of the two recent launches demonstrate that it does not intend to walk away from talks any time soon.
The projectile was sacked at about 4.30pm (0730 GMT) from the northwest town of Sino-ri, in an easterly direction, the South's Joint Chiefs of Staff said in a statement.
The latest tests were swiftly followed by USA test-launches of the intercontinental ballistic missile Minuteman III over the Pacific and the Trident II submarine-launched ballistic missile (SLBM) off Florida. "Both South and US militaries are analyzing the details of the projectile".
"While this recent launch of short-range missiles does not violate Pyongyang's promise to halt longer-range tests, North Korea has now made it clear it will not halt developing other parts of its military capabilities that threaten the region", he said.
And even if the North refrains from more serious violations, a prolonged campaign of testing short-range missiles would "erode trust" and complicate negotiations between Pyongyang and Washington, the Eurasia Group said in a report.
Still, the president - who favors negotiation with the North - was trying to leave room for diplomacy.
The incident was announced hours after North Korea fired what appeared to be two short-range, or distance, missiles on Thursday.
Within the 20-minute span of North Korea's most recent test, however, the USA also launched a nuclear-capable Minuteman III intercontinental ballistic missile (ICBM) some 4,000 miles from the California coast toward the Marshall Islands in the middle of the Pacific.
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Kim Jong II, the current leader's father, also once requested the US send Michael Jordan to North Korea, former New Mexico Gov. Bill Richardson told ABC News in 2000.
Moon's office earlier said the North Korean launches were "very concerning" and detrimental to efforts to improve inter-Korean ties and ease military tensions on the Korean Peninsula.
About 40 percent of North Korea's population is in urgent need of food aid after the country suffered its worst harvest in a decade, according to a recent United Nations assessment.
In Geneva on Thursday, North Korean Ambassador Han Tae Song likened the economic sanctions to "crimes". "But I don't think they're ready to negotiate", Trump told reporters.
"Our focus is on the denuclearization".
"While we did not reach an agreement with the DPRK [North Korea] at Hanoi, we exchanged detailed positions and narrowed the gap on a number of issues", a State Department official told ABC News in a statement and declined to comment on ongoing conversations.
The officials said Wise Honest - an 18,000-ton, single hull bulk carrier - had exported high-grade coal and brought back machinery to the impoverished and reclusive country. "That mission is important, and the pressure campaign that the world has engaged in must continue".
It was a "long-range strike" drill, the official Korean Central News Agency said, without specifying what kind of weapon was sacked and avoiding the words missile, rocket or projectile.