Japan's wholesale inflation accelerated in October at the fastest annual pace in more than a year as renewed yen falls pushed up import costs for some goods, complicating the central bank's decision on how soon to raise interest rates.

Japan's five-year government bond yield soared to a 15-year high, driven by a weakening yen and speculation of a potential interest rate hike by the Bank of Japan. The yen's decline to a five-month low against the US dollar,

The corporate goods price index (CGPI), which measures the price that companies charge each other for goods and services, rose 3.4% in October from a year earlier, Bank of Japan data showed, above market forecasts for a 3.0% gain. It followed a 3.1% increase in September.