Core consumer inflation in Tokyo slowed in May, but a key index stripping away the effect of fuel hit a four-decade high, underscoring broadening price pressure that may keep alive expectations of a withdrawal of ultraloose monetary policy.

The data for the capital, which is seen as a leading indicator of nationwide trends, showed companies continued to pass on rising costs to households in a sign inflationary pressure could last longer than the Bank of Japan projects.

The Tokyo core consumer price index (CPI), which excludes volatile fresh food but includes fuel costs, rose 3.2% in May from a year earlier, government data showed on Friday, roughly matching a median market forecast for a 3.3% gain.