A recent announcement has affected bond yields. The Treasury Department's plan to purchase a significant amount of government bonds has been detailed. This operation is expected to involve up to $6 billion.

The impact on bond yields is notable, with the 10-year US Treasury yield reaching its highest level in some time. Further information about the bond market and the effects of this operation can be found through additional sources.

Details about the timing and scope of the buybacks are available, including the fact that they are set to occur soon, but for full context and specifics, it is best to consult the original report.