North Korean state media slammed former US vice president Joe Biden for criticising leader Kim Jong-un, calling him “bereft of elementary quality as a human being”.
The criticism contrasts with North Korea’s repeated references to the good relationship between Kim and US President Donald Trump.
Kim said in April his personal relationship with Mr Trump was still good despite the collapse of their second summit in Vietnam in February.
According to Newsweek, Mr Biden, a 2020 Democratic presidential frontrunner, said at a campaign launch in Philadelphia on Saturday: “Are we a nation that embraces dictators and tyrants like (Russian President Vladimir) Putin and Kim Jong-un?”
State media the Korean Central News Agency (KCNA) responded to criticism of the North’s leadership in a commentary late on Tuesday.