U.S. Treasury prices jumped and yields declined as investors rushed into the safety of U.S. government bonds amid a global sell-off in financial markets.

At 4:10 p.m. ET, the yield on the benchmark 10-year Treasury note dropped nearly 6 basis points to 1.311% and the yield on the 30-year Treasury bond fell nearly 6 basis points to 1.846%. Yields move inversely to prices.