This story has been updated to include comment from Stephan Haggard

U.S. National Security Advisor John Bolton on Wednesday said Washington would need an indication that North Korea was willing to denuclearize before agreeing to a third summit.

Speaking to Bloomberg news, the national security advisor appeared to take a firmer stance than other high-level staffers in Washington, who have seemed more upbeat on the prospect of another meeting between U.S. President Donald Trump and North Korean leader Kim Jong Un.

“I think a real indication from North Korea that they’ve made the strategic decision to give up nuclear weapons,”