South Korea's vice fin min says closely monitoring financial and forex markets

The USD leapt higher with the shock CPI result:

• Forexlive Americas FX news wrap: USD soars on CPI, equities crushed

So far we've had some verbal intervention out of Japan:

• Japan's Kanda (top FX guy at the MoF) says is concerned about the recent sharp yen moves

South Korea getting in on the act now with their own verbal warnings.

As for Japan, the words are really not going to be enough, but its not as if they can do much for now.

I posted these earlier, of relevance:

• Here's what to watch for to warn of imminent Bank of Japan (BOJ) yen intervention

Solo Bank of Japan intervention seems unlikely:

• USD/JPY BOJ intervention watch - intervention seen as unlikely without US coordination

USD/ JPY dropped on Kanda earlier:

• The 4 things to watch prior to Bank of Japan FX yen intervention