The South Korean won weakened against the yen after rising to a 5-month high of 13.2235 during Friday's early Asian trading, by about 9:20 pm ET. The South Korean currency lost ground hit as low as 13.5575 by about 11:50 pm ET, with next downside target level seen at 14.10. The yen-won pair closed Thursday's deals at 13.3845.

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