U.S. Treasury yields were little changed in early European hours as concerns grow over U.S. debt after Treasury Secretary Scott Bessent rejected the prospect of the U.S. ever defaulting.

"The fact that the question is even being asked seems place a few asterisks around that answer," Rabobank analysts said in a note.

The 10-year Treasury yield was up about 1 basis point at 4.425%, while the two-year yield is flat at 3.911%, according to LSEG data.