BOJ
Bank of Japan Governor Haruhiko Kuroda warned of heightening risks to the economic outlook and signalled the central bank's readiness to ramp up stimulus.
Elsewhere in the currency market, the New Zealand dollar slid as its central bank staked out a dovish policy.
The dollar edged higher against the yen on Thursday.
Japanese wholesale prices rose at the fastest annual pace in nearly nine years in August as robust Chinese demand boosted commodity prices.
The Bank of Japan on Thursday slashed its annual inflation forecast
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