SEOUL: South Korean bond prices fell sharply across the board on Thursday after the central bank held interest rates steady in a surprise move and signalled it was not ready to cut the rates anytime soon.

The yield on the liquid three-year treasury bonds ended up 15 basis points at 2.63 percent, the biggest daily gain since Dec. 8, 2010. The yield on the five-year bonds also rose by 14 basis points.