WASHINGTON, March 6 (Xinhua) -- White House Press Secretary Sarah Sanders said on Wednesday that the United States would continue to have conversations with the Democratic People's Republic of Korea (DPRK).

"We are continuing to have conversations, as the president has said, we'll see what happens," Sanders said to the press.

U.S. National Security Adviser John Bolton said Tuesday in an interview with FOX Business Network that the United States would see whether the DPRK was still serious about negotiations and was committed to giving up its "nuclear weapons program and everything associated with it."

"If they're not willing to do it... they're not going to get relief from the crushing economic sanctions that have been imposed on them and we'll look at ramping those sanctions up in fact," he added.

U.S. President Donald Trump and DPRK top leader Kim Jong Un held their second summit in Hanoi, Vietnam on Feb. 27-28, without reaching an agreement.

Nevertheless, the White House said the two leaders had "very good and constructive meetings" and discussed various ways to "advance denuclearization and economic driven concepts."

Trump and Secretary of State Mike Pompeo also expressed the willingness that Washington would continue the conversation with Pyongyang.