Inflation may have picked up slightly last month as President Donald Trump’s widespread tariffs kicked in, a trend economists expect will become more visible in the coming months.

Measures of U.S. inflation barely declined in September, evidence that consumer price increases are grinding lower at a gradual pace.

Lower gas costs slowed U.S. inflation for a second straight month in August, but most other prices across the economy kept rising — evidence that inflation remains a heavy burden for American households.