Amid rising Ukraine-Russia tensions, Treasury yields decline.

On Tuesday, the U.S. Treasury yields decreased due to rising tensions between Ukraine and Russia, as investors anticipate new information.

The 10-year and 2-year Treasury yields decreased by 5 basis points each at 4.365% and 4.234%, respectively, at 6:41 a.m. ET.

Yields and prices move in opposite directions, with one basis point equal to 0.01%.

On Tuesday, Russian President Vladimir Putin cautioned the U.S. that the use of nuclear weapons had become more likely under a new doctrine. According to the new policy, Russia would consider employing such weapons if it or its allies faced a "critical threat to their sovereignty and territorial integrity" as a result of the use of conventional weapons.

The new stance comes after President Joe Biden allowed Ukraine to use U.S. weapons to strike inside Russia. It also follows news that Ukraine hit a Russian border city with U.S.-made missiles. The Russian military said in a statement that a "facility in Bryansk region at 03:25 tonight using six ballistic missiles."

Housing construction figures for October will be released on Tuesday, while existing home sales numbers will be made public on Thursday. The flash S&P Global Composite PMIs for November, which monitor trends in manufacturing and services sectors, will be published on Friday.

Following the election, traders have predicted that the U.S. economy will grow due to Trump's pro-business policies and tax cuts, resulting in soaring yields.

Washington was closely monitored by traders while Wall Street evaluated Trump's possible choices for Treasury Secretary.

The relevance of the pick for financial markets will likely depend on the US Treasury market's response. A reliable candidate will be well-received by the bond markets, while those with less experience or a counterweight to President-elect Trump's plans could see the long end of the US Treasury market sell-off and potentially weaken the dollar.

The individuals being considered for the position include Scott Bessent, founder of Key Square Group, and billionaire businessman Howard Lutnick, who has received the approval of Elon Musk.

— CNBC's Jeff Cox contributed to this report.