North Korea said on Tuesday the United States must accept that reality has changed since the countries' summit meetings in the past, and no future dialogue would end its nuclear program, state media KCNA reported.

In a statement carried by state media, Kim Yo Jong said she doesn’t deny the personal relationship between her brother and Trump “is not bad.” But she said if their personal relations are to serve the purpose of North Korea’s denuclearization, North Korea would view it as “nothing but a mockery.”

North Korea has ​doubled down on expanding its nuclear fleet and continued its criticism of the U.S., although it has refrained from personal attacks on Trump.