TOKYO: Yields on Japan's 10-year government bonds ended flat on Wednesday as investors showed scant response to a moderately weak outcome of Bank of Japan's bond-buying operations.

The market also shrugged off a rise in US Treasuries yields overnight after strong retail sales data.

The 10-year JGB yield was flat at 0.070%.

US Treasuries and benchmark 10-year note yields reached as high as 1.646% in early Asia, a three-week high.

Yields on longer-end notes rose, with the 20-year JGB yield gaining 0.5 basis point to 0.470% ahead of an auction for the debt with the same maturity on Thursday.

The 30-year JGB yield also rose 0.5 basis point to 0.680% and the 40-year JGB yield rose one basis point to 0.730%.

The two-year JGB yield was flat at minus 0.125% and the five-year yield fell 0.5 basis point to minus 0.085%.

Benchmark 10-year JGB futures fell 0.04 point to 151.62, with a trading volume of 17,078 lots.