South Korea's Foreign Minister Park Jin is planning to visit Japan as early as this month, a government source said Thursday, as relations between the two countries remain frayed over wartime issues.

Park's visit to Japan, which would be the first by a South Korean foreign minister since November 2019, is believed to take place after he returns from a trip to the United States that runs from Sunday to Wednesday.

"Nothing yet has been decided for now, but both sides are exploring possible dates," Choi Young-sam, a spokesman for South Korea's Foreign Ministry said, as Park's Japanese counterpart Yoshimasa Hayashi has requested his early visit.