She also said the US had "lost a golden opportunity" at the US-North Korea summit in Hanoi on February 27 and 28.
Choe blasted Washington chiefs, claiming they threw away a "golden" opportunity at its recent summit and added Kim might rethink a moratorium on missile launches and nuclear tests.
Between Feb. 16 and March 2, the Washington-based 38 North, a North Korea project of the Henry L. Stimson Center, detected structures on the launch pad at the Tongchang-ri launch site, also known as Sohae, had been rebuilt, although now it appeared activity had ceased.
The US had hoped the summit would demonstrate the success of Trump's diplomatic gamble with North Korea, but instead the meeting ended with no joint agreement, after Kim demanded all US sanctions be lifted on his country.
Pompeo told reporters it was not the first time he had been called "gangster-like" by North Korea.
North Korea expert Joshua Pollack, a senior research associate at the Middlebury Institute for International Studies at Monterey, said NorthKorea may be delivering an ultimatum.
Pompeo gave no sign of USA willingness to soften its stance in demanding that North Korea give up its nuclear weapons.
North Korea also has hardliners of its own, who may perceive Kim Jong-un's 120-hour train trip to Hanoi and back as a failure. US officials explained that decommissioning Yongbyon would not do enough to irreversibly end North Korea's nuclear missile program, while the concessions North Korea demanded would effectively unravel the sanctions regime. "It's the administration's desire that we continue to have conversations about this".
Earlier on Friday, a spokeswoman for South Korea's Ministry of Unification told a press briefing that the weekly inter-Korean meeting scheduled at a liaison office in Kaesong, North Korea, had been canceled after the North Koreans said they would not be sending senior officials.
"What we'll need to see is action, and that's what we're counting on, and it's what I'm hopeful we'll get in the months ahead", he said.
"Sometimes you have to walk", Trump said during a news conference following the conclusion of the talks, which broke up earlier than planned. "I'd like to speak further within the USA government before we respond".
Kim had committed multiple times to Trump in Hanoi that he would not to resume nuclear or missile testing, Pompeo said. "That's Chairman Kim's word, I have every expectation he'll live up to that".
That definition, White House National Security Advisor John Bolton said last week, called for the "elimination of their nuclear weapons program", as well as a decommissioning of Pyongyang's "chemical and biological weapons... and their ballistic missile program ended as well".
"I don't think that really falls in the line of the way that the North Koreans approach things".
She blamed the breakdown of talks on the US side, saying the American delegation was being too demanding and inflexible: [The US] "were too busy with pursuing their own political interests and had no honest intention to achieve a result", Choe added, according to TASS.
"What is clear is that the U.S. has thrown away a golden opportunity this time", she said.
Mr Trump and Mr Pompeo clearly stated after last month's talks that North Korean officials had asked for full sanctions relief.
At the State Department on Monday, Pompeo said that the North Korean offer in Hanoi "simply didn't rise to the level that was acceptable given what they were asking for in exchange".