(2nd LD) Seoul stocks sink over 3 pct, won dips by most in 5 years on Brexit
(ATTN: CHANGES headlines, lead; ADDS FSC chairman's comments in paras 5-6)
SEOUL, June 24 (Yonhap) -- South Korean shares fell by more than 3 percent Friday, the biggest daily loss of the year, with its currency sinking by the most in five years to t