NEW YORK: US benchmark 10-year Treasury note prices pushed to session highs early on Wednesday, with the yield briefly dipping below 1.8 percent to the lowest since Jan. 31, as worries over the European debt crisis fueled safe-haven buying of US government debt.

Benchmark notes were trading 13/32 higher in price to yield 1.803 percent after reaching to as low as 1.795 percent. The yield is down from 1.845 late Tuesday.

The 1.8 percent level is seen as a key technical resistance point for 10-year notes.