U.S. sovereign bond yields were mixed Monday following the terror attacks in Paris over the weekend.
Short-term German government bonds hit record lows on Monday as investors looked to safety, with U.S. Treasurys also seeing steady demand.
Yields on 10-year Treasurys fell to around 2.2623 percent early on Monday, after closing at 2.28 percent on Friday.
Meanwhile, 30-year bond yields were higher at 3.0701 percent after ending at 3.058 percent.
France has been rocked by a series of coordinated terrorist attacks in Paris on Friday night that left 129 dead and hundreds injured.
The Islamist militant group that calls itself "Islamic State" (ISIS) claimed responsibility for the attacks. France responded at the weekend by launching air strikes against IS targets in Syria.
Top European Central Bank policymakers – including President Mario Draghi will be speaking Monday and might give clues to the likely monetary policy response to the tragic events.
Data released Monday included the latest Empire Manufacturing index, which came in at -10.7. Investors will also be looking to the minutes from the October Federal Open Market Committee meeting, released on Wednesday.
On the supply side, $58 billion in 13 and 26 week bills are scheduled to be auctioned Monday.