TOKYO, Jan 6 (Reuters) - The Japanese government bond prices rose on Friday, lifted by overnight gains in U.S. Treasuries and a debt-buying operation by the Bank of Japan.
The 20-year JGB yield and the 30-year yield both fell by 1.5 basis points to 0.595 percent and 0.745 percent, respectively.
The benchmark 10-year yield stood flat at 0.055 percent amid caution towards the U.S. non-farm payrolls report due later in the day.
The BOJ purchased 410 billion yen ($3.54 billion) of JGBs on Friday with maturities ranging from five years to 10 years as a part of its regular bond-purchasing operation.
U.S. Treasuries gained broadly on Thursday following weaker-than-expected ADP private sector employment data. Uncertainty about the incoming Trump administration has also recently supported debt.
Investors are now focused on Friday's U.S. non-farm payrolls report in which economists expected jobs gains of 178,000 in December.
($1 = 115.6900 yen)
Reporting by the Tokyo markets team; Editing by Sherry Jacob-Phillips