Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. N. Korea Builds Leverage, Demonstrates Threat, With Likely Submarine Launch William Gallo SEOUL - North Korea has tested what appears to be a ballistic missile designed to be launched from a submarine -- an important advancement in Pyongyang's weapons program and a major provocation just days ahead of working-level nuclear talks with the United States. South Korea's military says it is "highly likely" North Korea tested a Bukkeukseong-type submarine-launched ballistic missile, or SLBM, early Wednesday from the sea near the coastal city of Wonsan in Gangwon province. Seoul says the missile flew about 450 kilometers but reached an altitude of about 910 kilometers, meaning it was launched at a lofted trajectory that would make its maximum distance much longer. If flown on a standard trajectory with the same payload, the missile would have a maximum range of about 1,900 kilometers, according to an estimate by David Wright, a senior scientist at the Union of Concerned Scientists. "This would classify the missile as a medium range (1,000 to 3,500 km)," Wright said. It is not yet clear whether the North launched the SLBM from a submarine or an underwater platform. If confirmed, it could be the first time since 2017 that North Korea has tested a missile that is capable of flying distances that exceed what is considered to be "short range." Its exact maximum range is not yet known. The provocation comes at a particularly fragile moment. Late Tuesday, North Korea's vice foreign minister said Pyongyang and Washington have agreed to hold long-delayed, working-level talks on October 5. The two sides will have "preliminary contact" the day before, she said. It's not clear how the latest launch will impact the talks. North Korea has conducted 11 rounds of ballistic missile launches since May. U.S. President Donald Trump has said he has "no problem" with Pyongyang's previous launches, since they were short-range. .