U.S. bonds fell on Thursday as investors unwound safe-haven bids spurred by the Ukraine crisis ahead of Friday's key nonfarm payrolls report and following data showing fewer Americans than expected filed new claims for jobless benefits.
Investors finished reducing their bond holdings on the Ukraine crisis as they looked ahead to results from a referendum vote due in 10 days that will decide whether Crimea will become a part of Russia.
"German Bunds were sensitive to the Ukraine situation and sold off a bit. Treasuries and other safe havens have followed," said Steve Van Order, a fixed income strategist with Calvert Investments in Bethesda, Maryland.
Wednesday's weak private employment data and a severe winter have clouded predictions for Friday's unemployment report, said Van Order.
(Read more: Friday's jobs report: No surprise if it's chilled)
"You could have almost anything come out tomorrow," he said.