The yen slumped on Tuesday after comments from the Bank of Japan, while the dollar bounced back after the U.S. government’s shutdown ended.
The yen lost 0.2 percent to 111.15 yen per dollar.
The dollar’s index traded at 90.49, near its three-year trough of 90.104 scaled on Jan. 17.
The euro was stable at $1.2277, having touched a three-year peak of $1.2323 on Jan. 17.
Sterling reached $1.4005, its highest level after Brexit vote.