A North Korean delegation has landed in Sweden for talks with U.S.

Earlier on Thursday Kim, speaking to Yonhap news agency at Beijing airport, said he and other officials were heading to Sweden.

"We're going for the DPRK-U.S. working-level negotiations," Kim told reporters in Beijing, according to Yonhap. "There's been a new signal from the U.S. side, so we're going with great expectations and optimism about the outcome."