U.S. government debt prices were mixed on Monday, as investors remained cautious in anticipation of the U.S. Federal Reserve's Jackson Hole meeting, due later this week.

The yield on the benchmark 10-year Treasury note sat lower at 1.5424 percent, while the yield on the 30-year Treasury bond was also lower at 2.2414 percent. Two-year note yields, meanwhile, lowered to trade at 0.7418 percent. Bond yields move inversely to prices.