Japan Ministry of Finance's Asakawa weighed in earlier in the session:

He's back on it again as USD/JPY tics around its session high

  • will take appropriate steps on FX if needed
  • FX moves are very volatile, I am worried
  • G7 and G20 have confirmed cooperation on FX is possible if needed
  • Excessive FX moves are undesirable for stable economy
  • shrinking US-Japan spreads is one reason for yen strength