Vehicles such as trucks and tractors can be used for mobile missile launches.
The U.S. has long considered North Korea's space program to be a pretext for developing missile technology.
South Korea is adding the weapons to its arsenal as part of one of recently-developed military programs, the so-called "Kill Chain."
President Trump should tread carefully, Russian Senate's Defense and Security Committee deputy head said.
The country's state-controlled media has been using Trump's aggressive rhetoric to justify Pyongyang's pursuit of nuclear weapons.
Pyongayng fired what is believed to be an intermediate range ballistic missile Hwasong-12, the same rocket it threatened to use to strike Guam.
Recent statements from Pyongyang have not been overwhelmingly enthusiastic on direct talks with Washington.
Newsweek takes a closer look at North Korea's missile development program.
The regime is about to celebrate its 69th year of existence as the Democratic People's Republic of Korea, and the South is on high alert for a possible missile test.
The Russian president said sanctions on North Korea are "useless and ineffective."
"The stronger and the smarter one will show restraint," Russia's deputy foreign minister said.
Pyongyang's weapon of choice has been the intermediate range ballistic missile (IRBM) Hwasong-12.
After North Korea's latest missile test, Japan asked the U.S. to call for even more economic sanctions against Kim Jong Un's regime.
Fact-checking this statement means unpacking the three claims contained within it: that the U.S. has been talking to North Korea for 25 years, that the U.S. has been somehow financially supporting North Korea for 25 years, and that talks have been inconclusive.
More sanctions will not curb North Korea's ambitions, Russia's deputy foreign minister said, but a U.S. military response will not do it either.
Kim Jong-un is setting a new record pace for his government's missile-testing.
The drills went southwest of the Korean Peninsula following North Korea's threats toward Guam last week.