The three launches come as the USA and South Korean militaries hold the joint Ulchi Freedom Guardian exercises in South Korea, which Pyongyang considers to be a provocation and threat to its security.
The ban also prohibits the expansion of any existing joint ventures...
Neither Japan nor South Korea confirmed the USA military's description of the weapons fired by North Korea as "ballistic missiles".
Benham says the military continues with a more detailed assessment.
The launches coincide with joint exercises between the US and South Korean militaries, exercises that North Korea always strongly protests because it considers them preparation for an invasion.More news: More Voters Trust Media Over Trump
Japan's chief cabinet secretary, Yoshihide Suga, told reporters the launches wouldn't directly affect Japan's security, and that no missiles have reached Japan's territorial waters and exclusive economic zone.
Missile experts say there's no indication the rocket has been fully developed, but such a weapon could strike all of the USA mainland.
Last month it carried out two successful ICBM launches, overseen by Kim and apparently bringing most of its sworn enemy the United States into range for the first time. "The situation could escalate at any moment".
"The reality vividly shows that the USA ambition for stifling the DPRK [Democratic People's Republic of Korea] remains unchanged no matter how much water may flow under the bridge and the puppet group's ambition for invading the north remains unchanged", North Korea's official news agency KCNA said on Friday.
"We hope that this is the beginning of this signal that we've been looking for - that they are ready to restrain their level of tensions, they're ready to restrain their provocative acts and that perhaps we are seeing our pathway to sometime in the near future having some dialogue", Tillerson said.More news: Zinke Set to Reveal Decision on Fate of National Monuments
North Korea test-fired three short-range missiles into the Sea of Japan.
Solid fuel missiles are faster and easier to deploy, and harder to catch before they launch because there's a lot less to be done in terms of launch preparation.
U.S. Army soldiers prepare for their military exercise in Paju, South Korea, near the border with North Korea, Saturday, Aug. 26, 2017.
Japan's top government spokesman says there is no direct threat to Japan following North Korea's latest test-launch of three short-range missiles.
In a conciliatory move before that, Tillerson said the USA was willing to sit down for talks with North Korea, but only if it relinquishes its pursuit of nuclear weapons.More news: Ronaldo Beats Messi To UEFA Player of the Year Award