U.S. government debt prices were higher on Tuesday as investors navigated the Evergrande-led sell-off in equities and awaited details from the Federal Reserve's two-day meeting this week.

At 4:00 p.m. ET, the yield on the benchmark 10-year Treasury note rose 1.4 basis points to trade at 1.323% and the yield on the 30-year Treasury bond rose less than 1 basis point to trade at 1.854%. Yields move inversely to prices.