WASHINGTON (AP) — The Federal Reserve’s preferred inflation gauge rose last month at its fastest pace since June, an alarming sign that price pressures remain entrenched in the U.S. economy and could lead the Fed to keep raising interest rates well into this year.

Friday’s report from the Commerce Department showed that consumer prices rose 0.6% from December to January, up sharply from a 0.2% increase from November to December. On a year-over-year basis, prices rose 5.4%, up from a 5.3% annual increase in December.

Excluding volatile food and energy prices, so-called core inflation rose 0.6% from December, up from a 0.4% rise the previous month. And compared with a year earlier, core inflation was up 4.7% in January, versus a 4.6% year-over-year uptick in December.

The report also showed that consumer spending rose 1.8% last month from December after falling the previous month.

January’s price data exceeded forecasters’ expectations, confounding hopes that inflation was steadily decelerating and that the Fed could relent on its campaign of rate hikes. It follows other recent data that also suggested that the economy remains gripped by inflation despite the Fed’s strenuous efforts to tame it.

INFLATION