US inflation rose at a faster-than-expected pace in October, according to official figures.
Prices rose by 0.4% in the month, which was lower than the 0.6% increase in September.
However, analysts had expected prices to rise by 0.3%, and the higher-than-expected pace could add to arguments for the Federal Reserve to raise interest rates at its next meeting in December.
The new figures come a week after the midterm elections which were fought over cost-of-living pressures across the US.
Inflation is the rate at which the price of products or services increases over time.