The US and the North last held their working-level nuclear talks in Sweden in October 2019
The KCNA statement warned that if the United States dared to take issue with the North's system of government by citing human rights problems, it would "pay dearly"
North Korea issued the warning days after Trump spoke of a possible military option toward the North and revived his rocket man nickname for North Korean leader Kim Jong Un
North Korea's Kim Myong Gil and Stephen Biegun, the special envoy of US President Donald Trump, are part of the teams at the talks
The impoverished but nuclear-armed nation, ruled by the Kim family through three generations, has been accused of state-sanctioned abuses including torture, rape and extrajudicial killings