Japan's top currency diplomat Masato Kanda warned against the Japanese Yen's ongoing weakness on Wednesday.
"We are closely watching currency moves with a strong sense of urgency.”
"We will respond appropriately if it becomes excessive."
Kanda's comments came after the Yen slumped to a fresh seven-month trough to 144.21 against US Dollar overnight.
At the time of writing, USD/JPY is trading at 143.90, down 0.09% on the day.