(4th LD) N.K. foreign minister arrives in Laos for regional security meeting

(ATTN: ADDS more info in 4th para))

By Koh Byung-joon

VIENTIANE, July 24 (Yonhap) -- North Korea's foreign minister arrived in Laos on Sunday to attend a regional security forum likely to be dominated by Pyongyang's nuclear weapons program.

Ri Y