The North Korean Foreign Ministry lashed out at Hillary ClintonHillary Diane Rodham ClintonIntel Dem decries White House 'gag order' after Bannon testimony 'Total free-for-all' as Bannon clashes with Intel members Mellman: On Political Authenticity (Part 2) MORE today, mocking her intelligence and appearance after the Secretary of State had expressed frustration with North Korean belligerence.

During a trip to Thailand, Clinton said North Korean leaders were acting like "small children and unruly teenagers and people who are demanding attention."

A North Korean spokesman responded with a fury, saying Clinton is "by no means intelligent" and is a "funny lady," according to CNN.

"Sometimes she looks like a primary schoolgirl and sometimes a pensioner going shopping," the Foreign Ministry said in a statement.

Clinton was in Phuket, Thailand for a meeting of southeast Asian states.

Read more about the war of words here.