No breakthrough again in rival Koreas' talks on how to restart joint factory complex in North

North and South Korea have failed again to agree on how to reopen a shuttered inter-Korean factory park. They have decided to meet again next week.

Wednesday's meeting at the North Korean border town of Kaesong was their fourth meeting this month. It was aimed at finding a way to restart the factory complex there.

The park was the rivals' last major cooperation project before it closed in April amid high tension following Pyongyang's third nuclear test in February.

Media pool reports say chief South Korean delegate Kim Kiwoong told reporters the two Koreas still have "big differences." Seoul wants measures that would prevent any future unilateral shutdown of Kaesong.

North Korea has pressed South Korea to end military exercises with the U.S.