President Donald Trump says he will be “disappointed” if North Korea is confirmed to be rebuilding a rocket launch site.
Satellite images published yesterday suggest Pyongyang is restoring a site it had pledged to scrap.
Work to dismantle the Sohae satellite launch site began last year and was seen as a concession by Pyongyang.
Talks between Mr Trump and North Korean leader Kim Jong-un broke down at a summit in Vietnam last week.
Speaking to newsmen, Mr Trump said it was too early to tell if the information was true.