South Korea on Thursday offered talks with North Korea to discuss a reunion of families separated by the 1950-53 Korean War, in its first direct overture under President Yoon Suk-yeol despite strained cross-border ties.

The surprise proposal came days before the thanksgiving holiday of Chuseok, when the two Koreas have held family reunions before. But prospects remain unpromising, with the North racing to beef up its weapons arsenals and refusing to deal with Yoon's administration.

Unification Minister Kwon Young-se, who is in charge of inter-Korean affairs, urged a swift, positive response, saying Seoul will consider Pyongyang's preferences in deciding the date, venue, agenda and format of the talks.