The yield on the 10-year U.S. Treasury note — the key benchmark for U.S. government borrowing — was broadly flat at 4.626%.

The yield on the 10-year U.S. Treasury note — the key benchmark for U.S. government borrowing — rose over 1 basis point to 4.558%.

U.S. Treasury yields were higher across the curve on Tuesday as investors mapped escalating tensions across the Middle East.