US ready to have dialogue with N Korea: Biden

US is ready for a dialogue with North Korea, only if it is prepared for genuine negotiations, Vice President Joe Biden has said.

Biden's remarks came yesterday after a recent offer by North Korea to have talks with US.

"North Korea is calling for dialogue. As my mother would say, I've seen this movie before. We've been there before. But we are ready, but only, only if North Korea's prepared to engage in genuine negotiations," Biden said.

He said that US would not support "North Korea's pattern of provoking a crisis and then insisting they be rewarded in order to cease and desist from the actions they are taking".