Top Japanese officials are said to have met earlier today to discuss about markets

Officials from the BOJ, MOF and FSA are said to have met from 0630-0700 GMT

I reckon they are just mainly taking stock after the BOJ decision yesterday and how markets are reacting to it. In case you missed out, the BOJ left monetary policy unchanged and the yen strengthened with USD/JPY falling to just under 108.00.

It's nowhere near enough to prompt any intervention just yet but it is possibly concerning for Japanese officials if the trend persists over the coming weeks/months.