U.S. President Donald Trump says "nobody is happy" about North Korea's latest missile firing and the U.S. is looking at the situation "very seriously."<br />In the meantime,... the U.S. Air Force tested an unarmed ICBM on the same day Pyeongyang fired its own projectiles. <br />Kan Hyeong-woo reports. <br />President Trump says the U.S. is closely looking at North Korea's latest firing of projectiles into the East Sea on Thursday,... calling them "short-range missiles."<br />"Well we're looking at it very seriously right now. There were smaller missiles, short range missiles. Nobody's happy about it but we're taking a good look and we'll see, we'll see. The relationship continues, but we'll see what happens. I know they want to negotiate. They're talking about negotiating but I don't think they're ready to negotiate."<br />Although President Trump expressed his unpleasant feelings toward North Korea's military activity, he added Pyeongyang has great economic potential and he doesn't think Kim Jong-un is going to miss the opportunity to strengthen his regime's economy.<br />Meanwhile, the U.S. Air Force conducted a launching test of an unarmed intercontinental ballistic missile... on the same day that North Korea fired its two projectiles.<br />Having conducted a similar launch earlier this month,... the Air Force said the tests verify the accuracy of the system and demonstrate nuclear deterrent capability,... but are not a reaction to world events.<br />The Air Force added the launch was part of regularly scheduled tests of ICBMs to ensure their combat readiness. <br />Kan Hyeong-woo, Arirang News <br />