Japan's top currency diplomat said recent yen movements were rapid and that authorities might take steps to address disorderly exchange-rate shifts. The yen fell below 153 per dollar, the weakest level since 1990, after robust U.S. inflation data was released. Authorities do not rule out measures to respond to the disorderly market dynamics.
"The article reports the yen dropping below ¥153 per dollar—the weakest level since 1990—after strong U.S. inflation data, directly explaining the modest USD/JPY gain on that day."