Japan's wholesale inflation accelerated in October as renewed yen falls pushed up import costs for some goods, data showed on Wednesday, complicating the central bank's decision on how soon to raise interest rates.

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.