The North Korean test was conducted by a railway-borne missile regiment that had been organised earlier this year, the KCNA report said.
“The railway-borne missile system serves as an efficient counter-strike means capable of dealing a harsh multi-concurrent blow to the threat-posing forces,” said Pak Jong Chon, a North Korean Marshal and a member of the Presidium of the Politburo of the ruling Workers’ Party of Korea, who oversaw the test, according to KCNA.
Photos released by state media showed an olive-green missile rising on a column of smoke and flame from the roof of a train parked on tracks in a mountainous area.
South Korea had reported the missiles were fired from the central inland area of Yangdok.
“Rail mobile missiles are a relatively cheap and reliable option for countries seeking to improve the survivability of their nuclear forces,” Adam Mount, a senior fellow at the Federation of American Scientists, said on Twitter.
“Russia did it. The US considered it. It makes a ton of sense for North Korea.”
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