The two Koreas will hold their second working level talks late this month on former president Kim Dae-jung's visit to Pyongyang next month.

A Unification Ministry official said Thursday that the second meeting in North Korea's border city of Gaesong on May 29th will discuss Kim’s travel route, itinerary and the size of his entourage but the talks' duration has not yet been decided.

During the first round of talks last week, the two sides agreed to Kim's visiting Pyongyang for four days at the end of next month.

But the parties failed to agree on the size of Kim's delegation and the means of transportation.

Kim wants to use the reconnected inter-Korean railway for his trip across the border.