According to the South Korean Defense Ministry, the DPRK launched the object from the Sinpo region on its eastern coast. The country's northern neighbor "fired a projectile into the East Sea from a site in the vicinity of Sinpo, South Hamgeyong Province, this morning," the South Korean Joint Chiefs of Staff told Yonhap, a local media source.
The US military's Pacific Command later said in a statement that the object had been a ballistic missile, probably a KN-15 medium-range ballistic missile.
The launch is the country's third in as many months. This one comes days before US President Donald Trump and Chinese President Xi Jinping are slated to meet face to face for the first time. North Korea is expected to be a major topic.
On Tuesday, a White House official said "time has run out" regarding North Korea's nuclear development, adding, "all options are on the table."
Trump has pressured Beijing to shut down North Korea's ballistic missile operations, saying China could do so "very easily" by shutting down the North Korea-China border and putting a chokehold on economic traffic between the two countries.
North Korea has been barred by the UN from carrying out ballistic missile launches or nuclear tests.