Wholesale inflation rises 2.2% in September, biggest year-over-year increase since April

Wholesale prices in the U.S. increased last month at their fastest pace since April, the Labor Department reported Wednesday.

The rise suggests inflationary pressures remain, despite roughly 18 months of higher interest rates.

The department's producer price index increased 2.2% in September, compared to a year earlier.

The index, which measures the price of goods before they get to consumers, also showed a 2% increase from August to September.

Wholesale prices have been increasing more slowly than consumer prices, raising hopes that inflation may continue to ease, because producer costs make their way to the consumer, according to ABC News.